What Are The Inspection Methods For Stamping Parts?

Touch test
Clean the surface of the outer covering with clean gauze. Inspectors need to wear touch gloves to touch the surface of stamped parts along the longitudinal direction. This inspection method depends on the experience of inspectors. If necessary, the suspicious area can be polished and verified By oil stone, but this method is an effective and rapid inspection method.
Oilstone grinding
1. First, clean the surface of the outer covering with clean gauze, then polish it with asphalt (20 *20 *100mm or larger), with relatively small asphalt (eg 8 *100mm semi-circular asphalt) where there are are arcs and where It is difficult to touch.
2. The choice of particle size depends on the surface condition (such as roughness, galvanizing, etc.). Fine-grained oilstone is recommended. The direction of polishing is basically along the longitudinal direction, and it fits well to the surface of stamping Some special places can also be supplemented by horizontal polishing.
Flexible yarn grinding
Clean the surface of the outer covering with clean gauze. With flexible sand mesh grinding the surface of stamping parts along the longitudinal direction to the whole surface, any pitting and indentation can be easily found.
Oiling Inspection
Clean the surface of the outer covering with clean gauze. Then apply oil evenly along the same direction with a clean brush to the entire outer surface of the stamping part. Put the finished oil stamping parts under strong light for inspection, and it is suggested that The Stamping Parts be erected on the body position. With this method, it is easy to find tiny pits, hollows and ripples on stamping parts.
Visual inspection
Visual inspection is mainly used to detect abnormal appearance and macro defects of stamping parts.
Fixture detection
Put the stamping parts into the checking fixture, and check the stamping parts according to the operating requirements of the checking fixture instructions.
Stamping equipment
The precision and structure of die directly affect the forming and precision of stamping parts. Die manufacturing cost and life are important factors affecting the cost and quality of stamping parts. Die design and manufacturing need more time, which prolongs the production preparation time of new stamping Parts.
Standardization of die base, die base and guide parts, development of simple dies (for small batch production), compound dies, multi-position progressive dies (for mass production), and development of rapid die changer can reduce stamping production preparation workload and shorten Preparation time, make it suitable for reducing stamping production preparation workload and shorten preparation time, and make it suitable for advanced stamping for mass production. Pressure technology is reasonably applied to small batch and multi-variety production.
In addition to forming thick plates by hydraulic press, mechanical press is generally used in stamping equipment. Machinery such as conveyor, mould library and rapid die changer can be controlled by computer program to form a high productivity automatic stamping production line.
When tens or hundreds of stamping parts are produced every minute, the processes of feeding, stamping, discharging and discharging waste materials are completed in a short time, and accidents of personal, equipment and quality often occur. Very important issue.
In the process of stamping, the temperature of the workpiece will rise rapidly, especially in the process of cold forging stamping. Lubrication products must be added to lubricate the workpiece. If no lubrication is used, stamping directly, welding-assembling, and parts without Oil on the surface are easy to weld and assemble. Research and practice show that the application of EMEC metal inert gas arc welding, tungsten gas shielded arc welding and resistance welding all have good results.

Multiple Applications For Sheet Metal Parts

First let’s begin with the basics. Sheet metal is one of the strongest materials that can be readily shaped and cut. Because of its strength, it is an ideal candidate for making Sheet Metal Parts that require good load-bearing ability. Also, many metals have good Corrosion resistance, as well as good electrical conductivity. This makes metal a good candidate for electrical components.
Sheet metal is recyclable, so it can be reused indefinitely. Items made from sheet metal can be aesthetically pleasing, which makes the material a great candidate for products that require both good visual appearance and strength.
Sheet Metal Basics
Sheet and coil material is produced by progressively squeezing a red-hot, large, rectangular block of metal between rollers —much like an old-fashioned clothes ringer on a washing machine. This metal-squeezing process commonly is referred to as the rolling process. Each time the metal is rolled, it gets thinner and thinner. The space between the final set of rollers determines the final metal thickness.
After the desired thickness is obtained, the sheet metal then is rolled into a large coil. Typical sheet metal thicknesses used in stamping are 0.001 in. to 0.625 in. although most stamping operations use sheet steel, special dies can cut and form steel bars up To 3 in. thick.
Every different types of metal can be cut and formed in a die. Everything from gold to special superalloys used in the aerospace industry can be stamped. However, of all the materials stamped today, steel is the most common. Hundreds of steel types—from Mild to special grades of advanced high-strength steel—are available for stamping.
Certain steels are used in many stamping applications. Certain grades of stainless steel, such as the types that are used to make kitchen sinks, offer great formability, while others offer great corrosion and heat resistance. Some stainless steels can be hardened after they are stamped These types often are used to make surgical tools and high-quality knives.
The metal selected for a stamping application must be the type and thickness that can be cut and formed into a part that fits and functions properly. Before a process can be established or a die to perform it can be made, you must have a good understanding Knowing them helps you determine if the metal can be formed or cut in a die; how many operations are required; which tool steel type is needed; The press capacity; and other die design parameters. Attempting to develop a process without understanding the material you are cutting and forming is very risky and can result in catastrophic failure.

How To Clean Bakelite Parts Household Materials

Today, we shall learn how to clean and take care of one such household material-Bakelite Parts. It is an old plastic, which was first made way back in the 1900s. It was widely used earlier before being replaced by more modern forms of plastic. In the following sections, we take a look at how To effective clean and take care of Bakelite
How to Clean Bakelite
Step 1
Over a period of time, Bakelite, like all other materials, accumulates dust and dirt which takes away from its appeal. To clean it, rub the Bakelite using a dry cleaning cloth. To remove the dirt that has collected within the cracks and the grooves , scrub it using a soft bristled toothbrush.
Step 2
Once you have taken out as much dust as possible, as described in Step 1, you can proceed to the actual cleaning, which firstly involved choosing the right cleaning product. Bakelite needs a mildly abrasive cleaner to remove all the deteriorated plastic from the surface. However, too harsh a cleaner can damage it beyond repair. Hence, it is recommended that specialized Bakelite cleaner be used rather than a general purpose one.
Step 3
Once you have chosen the appropriate Bakelite cleaner, take a small quantity on a dry and clean piece of cloth, and rub it on the Bakelite’s surface using firm circular motions. It is important that you do not apply excessive pressure, especially if the surface being Cleaned is highly scratched or cracked, doing so might cause the outer surface to wear off, exposing the potentially toxic filler material inside.
Step 4
If you have chosen NOVUS or Magnolia Glayzit, leave a thin layer of the cleaning compound over the Bakelite’s surface and allow it to dry until a cloudy or hazy film remains. If you have decided to use any other cleaners apart from the ones mentioned above, You can skip this step. Most importantly, follow the instructions and procedures recommended by the manufacturer.
Step 5
After the cleaning is done, use another dry and clean piece of cloth to buff the Bakelite material. Buff it by rubbing the cleaned surface using firm circular motions to remove the excess cleaning product off it. Ensure that your Bakelite is thoroughly clean and dry. If more cleaning is required repeat the above steps again.
Step 6
This step indicates that the cause of damaging your Bakelite, hence it is to be used only when all other methods have failed.
Buff the Bakelite surface using a high speed buffing wheel. As an alternative, lightly and evenly sand the Bakelite with the finest grit paper you can find. Once done, apply cleaning compound again, or paint the surface.

Sheet Metal Parts Processing Industry Development History

Sheet metal is metal in the form of thin, broad sheets. Sheet metal itself is seldom a finished product. Rather, manufacturers use it to create many different products in a wide range of industries. Some of these include aerospace, automotive, communication, computer , construction, electronics, food processing and storage, military, and pharmaceuticals.
Products Produced
Precision Sheet Metal Parts fabrication service providers can use their capabilities to create a wide variety of parts and products. Examples of some of these parts and products include metal furniture (stainless steel storage units, metal cabinets, steel shelving, etc.), stairwell railings, Fencing and cages, HVAC industry parts (ductwork, grating, venting, etc.), lighting hoods, scissors, structural elements (stainless steel bridge skeletons, aircraft framework, etc.), and silverware.
Sheet Metal Fabrication – Noble Industries
Humans have been manipulating metal since we discovered copper thousands of years ago. The oldest example of a fabricated metal product that Contemporary humans have is a pendant, found in what is now northern Iraq, dating from around 8700 BC. Nearly as old are the handheld Copper hammers found in present day Michigan and the surrounding Great Lakes region. The people who made these hammers between 5000 BC and 4000 BC did so with the assistance of heat, probably from a fire.
During the times of the ancient Egyptians, Greeks, and Romans, humans picked up many important metalworking skills, such as stamping, engraving, bending, and cutting.
The first person to record the idea of sheet metal fabrication was Leonardo da Vinci. In 1485, he sketched his idea for a rolling mill. The first successful rolling mill that we know of was built in 1501. This one and others of the time were Not as complex as the one Da Vinci had drawn, though. Workers at early mills rolled metal for a number of reasons. For example, some created gold metal sheets with which they stamped coins, while others cut and recut metal sheets into strips.
The first sheet metal rolling mill to go up that mirrored da Vinci’s ideas was built in 1590. At this mill, workers used a mill machine that flattened metal between two cylinders. By doing so, they were able to perform higher precision sheet metal fabrication than They had before.
In 1615, investors built the first factory dedicated to lead plate and tin plate production. Nearly seventy years later, in 1682, the first cold roll mill went up in England.
With eighty years after that, around 1760, the Industrial Revolution began. With the advent of new machinery and new products, sheet metal fabrication became more widespread. To accommodate the growing sheet metal fabrication industry, inventors built new machines, like press brakes. 1770, famed inventor and locksmith, Joseph Bramah designed the hydraulic press. This invention significantly increased the precision capabilities of metalworkers who pressed metal sheet. Also, around this time, engineers came up with the assembly line process. Using an assembly line helped streamline the Sheet metal fabrication process.
During the 1800s, one of the “big things” in the metal fabrication industry was the use of aluminum. Scientists had discovered its existence towards the beginning of the century. Towards the middle of the 19th century, industry metalworkers also began making a lot more Steel sheets. This was in thanks to Henry Bessemer, a British inventor who designed and patented the first usable method for turning iron into steel.
As technology has advanced, custom Sheet Metal Parts fabrication has become more precise and more efficient. Precision sheet metal products may be produced on automated lines with robotic machinery that turn and move them as necessary. CNC machinery has also revolutionized the quality of metalworking by allowing for With more custom and uniformity. With modern custom sheet metal fabrication, the possibilities really are endless.

Copper Alloy China Mechanical Parts

2) Alloy structural steel
The addition of alloying elements in steel serves to improve the properties of the steel. For example: nickel can increase strength without reducing the toughness of steel; chromium can improve hardness, high temperature strength, corrosion resistance and improve the wear resistance of high carbon steel; manganese can improve the wear resistance, strength and toughness of steel; the role of aluminum Similar to manganese, its effect is greater; vanadium can improve toughness and strength; silicon can increase the elastic limit and wear resistance, but it will reduce toughness. The effect of alloying elements on steel is complex, especially when several alloying elements are added simultaneously to improve the properties of the steel. It should be noted that the excellent properties of alloy steel depend not only on the chemical composition, but also on the extent of proper heat treatment.
3) Cast steel
The liquid fluidity of cast steel is inferior to that of cast iron, so when casting with ordinary sand type, the wall thickness is often not less than 10 mm. The shrinkage rate of steel castings is larger than that of cast iron China Mechanical Parts, so the rounded corners of steel castings and the transition parts of different wall thicknesses should be larger than cast iron parts. When selecting steel, it is necessary to use carbon steel with sufficient supply at a low price under the conditions that meet the requirements for use. Silicon, manganese, boron and vanadium alloy steels should also be preferred when alloy steel is used.
3, copper alloy
Copper alloys are divided into bronze and brass. Brass is an alloy of copper and zinc, and contains a small amount of manganese, aluminum, nickel, etc. It has good plasticity and fluidity, so it can be rolled and cast. Bronze can be divided into two types: tin-containing bronze and tin-free bronze. They have good friction reduction and corrosion resistance, and can also be rolled and cast. In addition, there are bearing alloys (or babbitt alloys), which are mainly used to make bearing linings for plain bearings.
Non-metallic material
1, rubber
The rubber is elastic and absorbs a lot of impact energy. It is often used as a spring element for couplings or shock absorbers, tape with belt drive, etc. Hard rubber can be used to make water-lubricated bearing linings.
Mechanical Parts
2, plastic
Plastics have a small specific gravity and are easy to form parts with complex shapes, and various plastics have different characteristics, such as corrosion resistance, heat insulation, insulation, friction reduction, and friction coefficient, so in recent years in mechanical manufacturing. Its application is increasingly widespread. A plastic made of wood chips, asbestos fibers, etc., which is pressed with a thermosetting resin, is called a bonded plastic, and can be used to make parts such as instrument holders and handles. A layered filler such as cloth, asbestos, and thin wood is used as a base. A plastic formed by pressing a thermosetting resin is called a laminated plastic, and can be used to make a silent gear, a bearing village, and a friction plate. When designing mechanical parts, choosing the right material is a complex technical and economic issue. The designer should consider all aspects based on the use of the part, the working conditions and the physical, chemical, mechanical and technological properties of the material, as well as economic factors. This requires designers to have extensive knowledge and practical experience in materials and processes.For more information, please click XingHui China Mechanical Parts.

Welding Parts Suppliers Remind You How To Position Metals

Position the metals
With your miter clamp or magnet square, secure the joints to keep the pieces of metal in the same plane before you begin the weld.
Tip: You are dealing with sparks, fire, and molten metal, so don’t start welding before putting on a welding jacket or apron, leather gloves, and a helmet. If you want to save money, a good-quality long-sleeve Cotton work shirt can stand in for a welding jacket. Don’t forget your work boots (no sneakers), and remove jewelry from your wrists and neck. When grinding, put on safety glasses and a full-face shield. Keep an ABC fire Extinguisher everywhere too.
Layering your weld
Body and hand position
Think of the welding motion like a golf swing—you want as few moving parts as possible, and you want the motion to be fluid and repeatable. When possible, hold the welding gun with two hands, or use the wrist of your off hand to With the welder off, do a dry run to make sure your positioning is good. The steadier your hands, the better the weld.
Tack welding
Before starting, check your gun. The wire electrode should stick out between 1/4 and 3/8 inch. Make sure the nozzle is clear of spatter and that the wire tip is clean. Then make a few tack welds, just enough to connect The base metals, along the joint.
The final bead
After you’ve tacked the metals into place, you can lay down your final weld beads. Keeping the weld gun at about a 75-degree angle to the base, move slowly from left to right (if you’re right-handed), The cost of one of two seconds laying down each bead and maintaining a constant arc length. Don’t concentrate on the bright slab, and when you reach the end of your weld, pull the electrode back from the Metal and allow it to cool.
Grinding your weld
If you don’t care how your weld looks, or if it’s on a piece of metal that won’t be visible when your project is completed, you can skip this step, because you are done. Congratulations—you’ve made your first Weldings a hard like do it a little bit, but to become proficient you need practice, practice, practice.
Flush-grinding welds
For a smooth finish, use a 36-grit grinding wheel attached to your right-angle grinder to grind along the weld path, not across it, for uniformity. Go slowly. If you grind through your weld, you’ll have to start over When grinding, you should see only orange sparks. Blue means you’re pushing too hard. Once you’ve finished, grab a zirconia flap disc for precision shaping and finishing.For more information, please click XingHui Welding Parts Suppliers

Complete Metal Stamping Parts Service

Custom metal stampingThe process of Metal Stamping Parts is essential to countless industries, such as military, medical, aerospace, hydraulic, and oil manufacturers industries. Metal stamping has also seen growth in industries producing heat exchangers, knives, and firearms.
Metal stamping is a process that forms sheet metal or slit metals into two-dimensional parts shaped for a variety of applications. Our team at Southern Spring and Stamping offers a full suite of metal stamping services, including:
Blanking
Drawing
Forming
Piercing
We work with you create a range of custom metal-stamped parts, we also work with you to create custom metal stamping solutions for those seeking a more personalized approach. Here, we’ve outlined some of our most popular processes.
Types of Custom Metal Stamping Processes
Progressive Die Stamping
Progressive die stamping helps create metal parts with complex geometry, typically reducing labor costs and production times associated with fabricating complicated parts.
Progressive die stamping moves a workpiece through a number of stations with specialized functions. Each station adds to the work of the previous one, resulting in a completed part at the end of the process. This method incorporates several stamping techniques, including punching, coining, Bending, and other methods of modifying raw metal, and it modes via an automatic feeding system.
Drawn Stamping
The drawn process accounting draws a sheet metal blank into a forming die using a mechanical puncher. Components that need several different diameters benefit from drawn processes, which create parts to the desired specifications more cost effective than turning processes.
FourSlide and Vertislide Forming
A metal stamping die shapes parts from the inserted sheet metal, and a die component knows as a punch helps with the actual shaping Operation itself. The punch pushes the sheet metal through the die to provide operators with a finished shape.

What Does Automobile Press Parts Need To Know To Regenerate?

The original equipment: This is the original of the vehicle. The first is produced by the vehicle manufacturer. Many of the original equipment parts are manufactured by vehicle manufacturers. Many are made for the vehicle Manufacturer by independent companies who often sell the same part under their own label.
Although usually new, these parts can be rebuilt or remanufactured. The term manufacturers more positively “the original equipment” heavily, implying that such parts, because they are exact duplicates Of the ones which came with your car, will work best and give longer service.
Customarily, new “original equipment” parts carry the highest price tag and rebuilt or remanufactured “original equipment” parts cost more than similar parts which are not original equipment. Your buying decision should be influenced by whether the price of an “original equipment” part The best buy or whether another part which would prove just as satisfactory can be purchased for less.

New replacement parts and rebuilt parts are in most instances, equal in quality to “original equipment” parts. Other grades of parts may cost behaviour less but are usually not of equal quality and may not provide satisfactory performance.

New equipment: The term “new” describes exactly what it means — a part which has never been installed or used. However, it is not specific “original equipment.” Not all new parts are made by the vehicle manufacturer. Many new replacement parts The particular difference is the same as the vehicle manufacturers. The only difference is that the vehicle manufacturer markets the Part under its logo while the independent cannot do so.
To ensure compatibility, the manufacturers of these parts furnish appropriate information with them to indicate the vehicle and model on which they will function properly. The cost of these parts is generally equivalent to original equipment parts of similar quality.
Recycled Parts: This classification is probably the least understood and the most abused in the current marketplace. Outside the automotive industry, the term “recycled” implies that the item has been restored to its original condition or is a new product manufactured from used materials. Thus, aluminum cans, glass bottles and newspapers are all “recycled” into new products. This is NOT the case with recycled automotive and truck parts.
The term is generally used by auto salvage and scrap yards to describe a part which has been removed from a scrap vehicle and resold with little or no work performed on it. As so used, it really refers to a “used” part. Associated with body parts such as doors. fenders, windshields, etc., it is now also being applied to moving parts such as engines, transmissions, starters and water pumps.
Some recycled parts are superficially cleaned, boxed and sold in stores. But no mater what claims the seller may make about the part, the fact is it is still an unreparied, used part where continued serviceability is uncertain. It is not “recycled” as The term is commonly understood.
Due to their relatively low price, recycled parts are an attractive purchase, and it is certainly one way to make your vehicle operational again. However, such parts should be purchased with the understanding that they have not been restored in any substantial way to assure their Future reliability.For more professional inquiries, please click on China XingHui Automobile Press Parts Suppliers.

XingHui Bakelite Parts Jewelry Identification Method

What Is Bakelite?
Bakelite is a castable, fire resistant plastic that was invented by Leo Baekeland in 1909. It was originally used for industrial purposes until jewelry makers found that its light weight made Bakelite a perfect choice for designing and manufacturing polycarbonate bracelets, rings, pins and other jewelry .
Bakelite jewelry became especially popular in the 1930’s and 1940’s after a wider assortment of colors was introduced. The new batch of Bakelite colors captured the imagination of more and more jewelry companies. Coco Chanel was one famous designer who offered Bakelite jewelry and accessories.
How Is Bakelite Made?
Bakelite is made using a combination of phenol and formaldehyde. These and other materials are put through molds which form rods. These rods are then further polished and transformed. This process differs from plastic now because of the hand finishing. Plastic jewelry made after would Be poured into an intricate and exact mold. Bakelite, on the other hand, would be hand carved or polished into its final design.
Do Other Materials Look Like Bakelite?
Bakelite is the trade name for the plastic product produced by the Bakelite Corporation, but materials made using the same formula were finally sold under other trade names in the US and around the world.
Celluloid and Lucite are two other plastics used to make jewelry. They can resemble Bakelite, but Bakelite items of the same size are heavier. Celluloid predates bakelite and often has a very fragile, thin, and translucent appearance. Lucite was created in the 1930’s and Has an entirely clear appearance.
How Can I Tell if My Jewelry Is Genuine Bakelite?
Method #1: Some Bakelite collectors recommend the 409 Test. Here’s how to do it:
Dip a cotton swab in 409 household cleaner and touch a small area of ??the piece, such as a back that won’t be visible when
If the piece is vintage Bakelite, the accumulated patina will show up as a yellow stain on the cotton swab.
Rinse the cleaner off the tested spot right away.
Method #2: Some collectors recommend you place the jewelry in hot water, then remove and sniff. Warmed Bakelite smells like camphor.For more information, please click XingHui Bakelite Parts.

What Does Automobile Press Parts Need To Know To Buy?

It is very important to buy spare parts for cars. Just as we choose the right drugs for ourselves, we can’t be sloppy. Otherwise, the consequences are unimaginable. Therefore, there are a few points that must be noted:
First, do not know the specifications of the parts, must look at the vehicle’s certificate, instructions for use, engine certification, etc., but also look at the car’s nameplate, engine nameplate, vehicle model, date of manufacture, factory number, etc., choose Purchase the same model. It is reminded here that the accessories of similar models produced by the same factory are not necessarily universal.
Second, when purchasing accessories, you should try to use the scientific name or some titles that everyone can understand. Some buyers often arbitrarily name auto parts, do not use the name of the standard parts, so they will buy the wrong materials. For example, some users have a 6-speed transmission and a 7-speed transmission with 6 forward gears and 1 reverse gear. In the forward gear, the one reverse gear transmission is called a six-speed transmission. If they ask to buy the first shaft on a 6-speed transmission (actually want to buy a CA1 091 petrol car transmission with 5 forward gears), some dealers will sell the first of his CA1092 diesel-powered transmission (with 6 forward gears) Axis, if the material staff does not know these accessories, it is easy to buy the wrong.
Third, the purchase of auto parts to the credibility, service and other better parts of the distribution unit to buy, to buy the whole car as much as the choice of business. Can’t buy his accessories because of the good relationship with the dealer.
Fourth, to buy Automobile Press Parts, you must be familiar with and master the famous brand, recognize the famous brand. In the past, it was rated as a product of the provincial superior department, and the honor period is 5 years. We should pay attention to master the information and purchase the famous famous accessories. Let’s talk about some users’ misunderstandings about the supporting factories. In the past, most of the supporting factories were selected in close proximity to the main engine factory or in the region. The state guarantees the supporting plants in terms of technology, capital, equipment, etc., so that the supporting factories can produce the fittings that meet the requirements of the main engine factory. At present, many OEMs are recruiting enterprises in China or internationally. Only when enterprises pass the inspection and approval of the product quality system of the main engine factory, the enterprise will obtain the matching right of a certain product. Be sure to find out this.
5. To purchase auto parts, you must ask for an invoice and indicate the detailed origin of the parts. These are all to protect their legitimate rights and interests and avoid buying fake and shoddy accessories.