Matters needing attention in fine parts processing

What should we pay attention to when processing fine parts

1. The number of working procedures of fine stamping parts mainly depends on the complexity of its structure and shape, and is determined by the number of tortuous angles, relative orientation and tortuous direction. When the zigzag radius of the zigzag part is less than the allowable value, a shaping process is added after the zigzag.
2. The process quantity of fine stamping parts is related to the data nature, drawing height, drawing steps, drawing diameter, data thickness and other conditions, which can only be determined by drawing process calculation. When the fillet radius of the drawing part is small or the scale precision is required to be high, a shaping process should be added after the drawing.
3. The determination of the number of processes should also be in line with the existing mold making ability and stamping equipment. Mold making ability should be able to ensure the mold processing, installation accuracy of the corresponding progress requirements. Otherwise, you can only add the number of operations.
4. When the cross-section quality and dimension precision of fine stamping parts are required to be high, it can be considered to add finishing process after blanking process, or select fine blanking process directly.
5. In order to improve the stability of fine stamping process, it is sometimes necessary to add process number to ensure the quality of fine stamping parts. For example, the additional positioning technology hole punching of zigzag parts, the addition of deformation in the forming process to reduce the hole blanking to transfer the deformation area and so on.
6. The blanking of fine stamping parts with simple shape is completed by single process die. Because the structure or strength of the die is limited, the inner and outer parts of blanking should be divided into several parts, and multiple stamping processes should be selected.
7. Special stamping oil should be selected for fine stamping. Rapeseed oil, machine oil, recycled oil and other non special oil products do not contain additives suitable for stamping processing, which will lead to quality problems such as reduced precision of workpiece, burr of burr edge and surface hole damage. And the chemical substances in non-specific oil products will form rust on the machine, yellow robe, and skin allergy of workers.

The above is the need to pay attention to the fine parts processing, I hope to help you