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Process classification of multi-station progressive die in stamping parts processing

by:Fortuna     2021-03-04
Stamping parts processing plant, processing stainless steel stamping parts, furniture hardware accessories, etc., stamping parts processing will use multi-station progressive die, there are many types of multi-station progressive die, then in this multi-process progressive die What is included in the classification of processing procedures? 1. The blanking progressive die takes plane stamping parts such as motor rotors, stators, integrated circuit lead frames, transistor leads, etc. as examples. These parts have very narrow lead widths, bridges, small holes and cuts, etc., which are affected by the strength of the mold. Due to the influence or limitation of processing capacity, it is impossible to complete all stamping in one station, so a progressive die with divided work steps can be used. 2. Bending Progressive Die In the processing of stamping parts, for some blanking or small bending parts with curved shapes, it is often inconvenient to operate because the parts are too small, and it is necessary to use a bending progressive die to produce. If the bending part has multiple bending directions, it should be handled properly in the bending process, and the order should be arranged. If higher productivity is required, a progressive die with multiple or multiple rows of layouts should be used. In order to improve the accuracy of the bending part, the springback value of the bending part needs to be controlled when designing the bending progressive die, and the size of the bending part can be corrected. 3. Deep-drawing progressive die 1. The deep-drawing progressive die is continuous deep drawing on a long strip without material annealing and other treatments in the middle, so it requires better drawing process reliability. Since the drawn parts are prone to wrinkles and cracks in the processing of stamping parts, the blank holder area and blank holder force must be correctly determined. It is the key to deep drawing progressive die to use tape-cut deep drawing or non-notched deep drawing, determining the first drawing diameter and drawing height, and determining the fillet radius of the first drawing of the convex and concave dies. When designing, one or two vacancies are often left after the first deep drawing, so that appropriate changes and adjustments can be made after the mold trial. 2. In the deep drawing process of stamping parts, factors such as flange diameter, strip step, diameter and height of the workpiece, and blank holder force are all changing. Therefore, each step should independently consider its stamping characteristics and design a suitable structure. 3. It is deep drawn with the second cut method of cutting several concentric circles, and the material utilization rate is low. Moreover, the continuous drawing method of the whole strip material without cutting is more difficult in the process, but due to the temperature rise of the material caused by the continuous drawing, the drawing of the next process is carried out before the complete cooling, which is different from the single pass. Compared with the drawing process, it is more advantageous in terms of plastic deformation of the material. If the width of the material is appropriately reduced and the drawing coefficient is increased, the non-notch drawing method can also expand its application range. Article recommendation: Deep drawing characteristics of hemispherical and parabolic metal stamping parts Previous post: Deep drawing characteristics of hemispherical and parabolic metal stamping parts
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