Forging burr hole punching differential Does not produce punching burr, thus saving work of cleaning up glitches,adidas climacool schuhe, the economic effect is that the fort off the side of the wall i words Du Kui health - poor private school leek j soap / bfj perforated bamboo '0 touch forgings, all with red hole with skin. As the punching slot model with skin forming in forging a greater temperature drop, greater resistance to deformation, so the thickness can not be designed too thin, the minimum thickness was 3ram. Excision with skin punch punching die. In punching, due to the hole and punching die forgings concave touch not completely fit, skin is still in limbo, but when there is a tear in the punching zone, so the bottom of the hole in forging a greater vertical burr. This bore burr, clean up is very difficult, especially the small size of the hole even more irregular, seriously affecting the quality of forging and cost. On the basis of practice in the production, we developed a referred to as In this paper, this method specifically to be addressed. First, the traditional method produces burr punching Analysis conventional punching method shown in Figure 1,adidas la trainer, the lower section in red always have a greater burr, shown in Figure 1A at the enlarged map. Figure 1 shows, punching die is at the cusp of cutting edge, when the punch is easy to crack. Must be designed into a small plane,adidas climacool hose, so as reduced height, forged in the area is in suspended state. Punching deformation will occur when the skin punching, especially more so this is just hot punching burr reasons. . . . +. Burr thickness and height of buildings, mainly due to forging material strength, performance, punching the film thickness,adidas neo, punching die size of the gap between the convex and concave grip, die wear state, as well as forging temperature and other factors. Week 1 class Simulium Kai Rong Si surface tellurium Figure 1 hole punch 2 holes 3} forging die in 4 hole punch skin eleven collapse angle 6 with crack with a bright wide burr burr height E through I ● improve the impact because, although able to restrict to a minimum on the burr, but not cutting out completely in this way gross farming without forging, which always require an additional secondary deburring process. In order to obtain burr-die forging, we test referred to as a A spit up too much time punching punching around the forward section 2 in Figure 1. Hole punch 2. 3 holes forging. Shen} hole punching die a skin thickness of an embossing height and then a second process step, the reverse separation punching. Shown in Figure 3. 18 Figure 3 Reverse-cut application of section separation} 1 hole punch 2. 3 hole punching concave horizontal forging film a one touch 4 punching punching collapse forward angle n. A reverse angle of a forward fall punching punching punching bright light with a reverse punch with a skin thickness seen from Figure 3,adidas climacool, the forward and reverse embossed die-cut separation of punching,adidas climacool chill, cutting height is the differential. Therefore, as shown in Figure 1,3 shows the differential punching,adidas online shop, punching differential surface without tearing off the red zone,adidas schuhe, so no vertical spikes. Therefore, to achieve the purpose of punching without burr. Third, the differential of about punching process, design rules 1. Forward embossing punching punch slider should be adjusted under the dead, so that the next location of dead skin thickness in half of the punching position can also be slightly more, but can not make punching and forging skin separation. General h a f Ji ~ curse j. 2. After punching the reverse isolation of forging punching forward, flip 180. And placed within the die, and then reverse the separation punching, punch the bottom dead center position of the film and punching should be separated to forging. 3. Should pay attention to (1) When the forging parting line shape is symmetric under a forward and reverse punching punching the punching die is the same mold. (2) When the forging parting line shape is asymmetric under the forward and reverse punching punching the punching die can not use the same mold. Because punching is positioned by the shape. In order to ensure the accuracy of positive and negative cutting position, it must design their own special punching die. (3) If it is a continuous multi-station punch. Both positive and negative cutting process step according to the method of continuous punching. Fourth, no burr punching the economic effects of the differential sum. Differential punching the new method can be burr-hole die forging, thus eliminating a lot of deburring workload, especially for small size with irregular hole punching die forgings, it is a kinds of good ways to teach if the economy is obvious. After Yu 相关的主题文章： unless the strain is very large. 3. Whether in high or low temperature zone deformation White pine ratio of 0.3 concave die cavity shape and size