Any tool maker might imagine what will happen if a tap within a progressive tool drives into a strip without a pre-pierced hole or a missing extrusion hole. The consequences can be very frustrating. The missing hole in the in die tapping tool ( IDT) can be due to some of the following reasons:-...
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Coining is a common process in metal stamping industry. It involves thinning the material thickness and transforms the piece part to completely new shape and size. Coining can be done by cold and hot process; it requires higher operational force and may need to be performed two to three times in order to form...
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In die tapping tool requires longer stripper travels and adequate die space or progressions for the tapping head. Following are some factors one must consider when designing a tapping die: Material Lift. When tapping from the top down, it is best to keep material lift to a minimum. The lower the material lift, the...
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In die tapping allows threading to be done in a progressive tool without involving expensive secondary threading operations. In die tapping units are available in both mechanical and servomotor driven. Mechanical driven tapping unit hreading is done by a series of gears arranged in different ratios, which are driven by a vertical lead screw...
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The first step to set up a progressive tool is to determine the die shut height. Experienced tool makers or set up men know how to set up a tool using the set up block or die Stoppers which is inbuilt in the tool. Shut height is determined by trial and error method...
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The traditional method of die set up usually takes more than 4 hours, it depend on how big the tooling size is and what is the machine type. One way to reduce the set up time is to look into how fast the tool can be setup properly and safely. A quick die change...
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Die Protection system is used to protect your progressive die in the case of any unexpected event. These events can be misfeed, strip buckle, double hits, slug up, broken punch etc. A mis-feed pilot is used in most of the tool shops for tool protection since the last four decades. Today, many conventional tool...
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In a progressive die, shaving is a secondary process to shear a previously cut edge to produce a smooth and straight edge with minimum breakaway. This metal stamping process usually applies on highly precision dies with precision clearances; the finished quality is comparable to or better than fine blanking. In the shaving operation, the amount of material being...
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