The difference between precision stamping parts processing and machining 'hardware'

The difference between precision stamping parts processing and mechanical processing, when it comes to stamping parts, Dongguan Hardware can be said to be very experienced, the thicker the stamping parts, the greater the pressure, precision blanking (referred to as fine blanking) is a common blanking process A sheet metal processing method developed on the basis of this method is to improve the guiding accuracy, reduce the gap between the convex and concave dies, increase the reverse pressure and the V-shaped ring blank holder and other technological measures, resulting in a strong three-way compressive stress state Under the conditions, the process of fine blanking or fine blanking combined with other forming processes is realized to obtain fine blanked parts. Compared with the ordinary blanking process, the precision stamping process has the following characteristics: 1 The dimensional accuracy of ordinary blanking parts is generally IT9 to IT12, and the dimensional accuracy of fine blanking parts is generally IT7 to IT9, and the thickness is 0.5 For sheet metal from MM to 1MM, the internal dimension accuracy can reach IT6 level; 2 The roughness of the shear surface of ordinary blanking parts is higher than that of the section, while the roughness of the shear surface of the fine-blanking parts is lower than that of the section. 3 The surface integrity rate of the stamping parts can reach level 1, generally level 2, the general burr height is 0.01mm to 0.08mm, and the consistency of the parts is good; 4The structure of the fine blanking die is complex, and the manufacturing accuracy is high; 5Although it can be designed and manufactured The hydraulic fine blanking die is installed on an ordinary punch or hydraulic press to realize the fine blanking process, but modern precision stamping parts processing and production use high-precision and fast special precision stamping parts processing presses to achieve better results.