Stamping parts manufacturers talk to you about the tolerance definition of stamping parts-hardware

We know that there is a tolerance for stamping parts produced by stamping parts manufacturers. So what are the so-called tolerances? What is the definition of tolerance? Xiaoshuo sorted out a few points to share with you: 1 Dimensional tolerances The dimensional tolerances of fine blanking parts depend on factors such as part shape, mold manufacturing quality, material thickness and performance, lubricants and press adjustments. Can be selected from Table 1. 2 Flatness tolerance The flatness of the fine-blanking part refers to the deflection of the part plane, and its value is: fu003dh-s Because the fine-blanking material is carried out in a compressed state, the fine-blanking part has a good flatness. And this flatness varies with part size, shape, material thickness and mechanical properties. Generally speaking, thick materials are flatter than thin materials; low-strength materials are flatter than high-strength materials; the blank holder force is larger than the smaller blank holder force. The surface of the material on the punch side is always concave, and the die side is always convex. However, if the parts need to be stamped, indented, cut, bent and other processes or punched with a continuous die, the flatness will have a large fluctuation range due to local deformation or different punching directions on the part. But in any case, the flatness of fine blanking parts is always much better than that of ordinary stamping parts. It is a general straightness measured at a distance of 100mm. 3 Perpendicularity tolerance The blanking surface of the fine blanking part and the base surface form a certain angle tolerance (inverted taper), which is called non-perpendicularity. It is related to the thickness of the material and its performance, the state of the cutting edge, the stiffness of the die, and the adjustment of the press. Generally, when the material thickness is 1mm, the non-perpendicularity is 0.0026mm. If the material thickness is 10mm, the burr side is 0.052mm larger than the collapse angle. Hardware and stamping parts tolerance can reach 0.01MM stamping parts manufacturer, 15 years of ingenuity and focus, 5000 square meters production workshop, daily production capacity of 3 million. Quickly solve the time problem, accuracy problem and quality problem of your stamping parts. Choose, choose rest assured!