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Metal stamping is the process of forming sheet metal and comprises procedures like cutting, drawing and bending the metal sheets. This process mainly involves tensile pressure, in contrast, to punch and die that employs compressive pressure. Sheets may become deformed and later crack as a result of the tensile force.
The best workpieces for producing metal stamping parts are those with a large surface area to thickness ratio because this gives them good formability. Formability allows the sheet metals to deform without defect when being pulled in two directions simultaneously.
Other features affecting the metal’s formability include the die design, stamping press, speed of the press, lubrication, the ductility of the metal and the controls that are meant to ensure that the operation is safe and in synchrony. Due to these details, formability varies from one section to the next. Out of the primary die procedures of Taiwan stamping parts, cutting dies and forming dies are most common.
Cutting incorporates shearing, blanking, punching, and trimming. Shearing refers to the task of cutting large sheets of material into smaller pieces to be used in subsequent operations. A die and punch are used in shearing. The process entails extreme plastic deformation which is closely followed by breakage which spreads into the thickness of the blank.

Blanking is a type of shearing operation that is done through a closed contour. The coveted section of this process is the part of the metal that is inside the sheared contour, known as blank. A good example of this is forming circular blanks from sheets to be used later for deep drawing of the motor casing.

Punching is the maneuver whereby the wanted part is the piece of sheet that remains after holes are made. The hole-punching process and the other kinds of die-cutting need a defined clearance between the die and punch. A good clearance is a product of the type, width, and toughness of the workpiece material. Pressure multiplies as the punch goes through the material causing a fracture to appear. Careful scrutiny of a die cut border of metal stock reveals a polished border at the point where the punch perforated the stock accompanied by a rough border where the rupture occurred. 

Tender steel usually detaches when about a third of the stock width has been perforated. Nevertheless, when tougher materials are die-cut, perforation caused by the punch might be less than a third the width of the material and tender materials may need nearly full punch perforation for a fracture to occur.
After formation of the metal stamping parts, a trimming die is used to get rid of the surplus fragments of metal from the workpieces. Forming is a general term for the metal manipulation process whereby the structure of a punch and die is replicated right into the metal. Common examples of forming operations conducted with the press mounted dies involves drawing, flanging, bending and hemming.
Drawing molds level pre-cut metal blank by pushing it in the hollow section of a die with a punch while avoiding unwanted wrinkling, thinning and breakage of the metal. A number of intricate Taiwan stamping parts can be created by the drawing. The drawn pieces may differ in size from tiny ones all the way to aircraft and automobile components big enough to warrant handling by mechanical equipment.
To create the best-formed metal stamping parts, the pressure applied by the punch has to be big enough to draw the metal beyond the border of the die opening and cause it to go into the die. Moreover, the metal that has been drawn requires a mix of ductility and strength so as to avoid breakage in the sensitive region where the metal may form from the face of the punch to its sides. Forces of compression on the metal in the region over the die’s border will trigger the metal to warp.
In case this metal is pulled into the die, warping would intensify to a point where the metal would rupture. Therefore, to avoid warping, the blank needs to be grasped tightly using a blank holder. On the majority of forming presses that produce Taiwan stamping parts, the blank holder is an exterior ring between which the punch passes. This blank holder clasps the workpiece up against the die used to draw so as to regulate the flow of metal when the punch creates the shape.
The blank holder has to apply more force against the punch than the blank in order for metal to trickle into the die. That notwithstanding, the pressure exerted has to be just enough so as to avoid wrinkling.
Considerations to make so as to ensure correct blank holder pressure differ from one component to another but entail the acuteness of the draw reduction, properties, and thickness of the metal and die lubrication among other factors.
Progressive die metal stamping parts offer several advantages to users. First on the list is speed. Progressively dying metal stamping parts allows for a continuous supply of material along the various die stages of a tool. This process enables you to form extra parts within a short timespan vis-à-vis traditional machining or fabrication.
Secondly, die metal stamping parts progressively gives you a faster setup time as contrasted to conventional machining or fabrication. This, in turn, leads to increased cost-effectiveness per piece.
The third reason for dying Taiwan stamping parts continuously is that you will have less scrap material. Progressive stamping includes bending, punching, bending and other techniques of altering metal to develop your desired end product. Most of the material is used, hence fewer fragments are produced.
Fourthly, Taiwan stamping parts that are continuously dyed offer longer runs. The escalating material supply used in the progressive die stamping makes long runs possible. These longer runs between tooling adjustments and material changes imply that your metal stamping parts can be made in a shorter timeframe.
Additionally, this process results in high repeatability. The tough tooling dies designs give room for top volume runs in the absence of die devaluation. This implies that your metal stamping parts maintain their high quality as well as having a low number of failed parts.
Lastly, applying progressive die stamping enables you to produce solidly built Taiwan stamping parts in the most efficient way.

Hueibin Enterprise Corp. Metal Stamping Parts  
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No.6, Lane 8, DingHu 1st Street, DaHua Village, KueiShan Township, Taoyuan County 33378, Taiwan, R.O.C