Common defects of bending precision stamping parts

Guangdong Precision is a high-precision enterprise dedicated to custom processing of precision stamping parts. The team has more than 30 years of experience in custom processing of stamping parts. Bending stamping parts are a kind of stamping parts, and the processing difficulty is relatively low, but the bending stamping parts have some common defects. Next, let's look at the common defects of bending stamping parts. 1. The shape and specifications do not meet the main reason for springback and improper positioning. The processing method is that in addition to taking certain effective measures to reduce the resilience, it is also very important to improve the reliability of the blank positioning. 1.1 Reliable positioning method The key to the positioning method of the blank is to take the appearance design as the standard and the hole as the standard. The appearance design positioning is convenient in actual operation, but the positioning accuracy is weak. The actual operation of the hole positioning method is not very convenient and the application scope is narrow, but the positioning is accurate and reliable. Under special standards, sometimes the appearance design is used for initial positioning, which greatly causes the blank to be manipulated within a certain range, and then the hole pitch is used for positioning, and the advantages of the two are used to make the positioning accurate and convenient in actual operation. 1.2 Press the blank. Use air cushion, eraser or spring yellow to create the pressing force, and press the plate before the bending process. In order to achieve this goal, the injection height-width ratio of the pressing plate or stripping rod should be made slightly higher than the cavity plane. 2. Surface scratches The key reason for surface scratches is poor selection of materials in the mold work of precision stamping parts, low heat treatment process strength, arc wear of the cavity, poor smoothness, poor surface quality of the bending blank, and deviation of raw material thickness. , The selection of the processing technology plan is unscientific and lacks lubrication. [Related recommendation] Learn more: What are the methods for polishing the surface of stainless steel? Learn more: Manufacturing characteristics of automotive stamping parts molds Learn more: Points to note in the design of continuous stamping dies