Metal stamping plant first brand [Branch] Shenzhen Baoan District Songgang Kechuang precision molds metal factory was founded in 2005, Main: various types of precision metal stamping dies, metal stamping shrapnel, auto metal parts, precision drawing parts , metal clips, heat sinks, mobile power shell. Have improved production processes and quality system to ensure product quality. I do not know when the selected piece is stretched by what principles, today Shenzhen precision drawing parts manufacturers to discuss it with you, here is today's content. Drawing parts selection and design features: 1, parallelism of the mold base, demand should arrive next appearance, parallelism Gongyi usually four. 2, the choice of the mold base or planning related to the scale necessary to have a job with the selected station and press the slider to adapt and make the necessary checking. 3, mold base materials usually used HT200, HT250, can also be used Q235, Q255 steel layout, on a large selection of fine die cast mold base ZG35, ZG45. 4, the upper and lower die seat bushing, guide pin hole spacing means necessary common, usually demand precision ± 0.02mm or less; mold base of the guide posts, guide sleeve means hole axis should die on the seat next plane straight, when device sliding guide pillars and sets straight Gongyi usually 4 degrees. 5, stretching pieces chosen or designed mold base must be adapted to the press about the size of the selected table and slider, and make the necessary checking. For example, the lower die smallest outline dimensions, should be higher than the bench press leak orifice size of each side at least a large 40 ~ 50mm. 6, try to use standard mold, and the standard mold of the type and size determines the upper and lower mold base types and specifications. If you need to design their own mold base, the diameter of the circular mold base should be higher than the concave template diameter 30 ~ 70mm, the length of the rectangular mold base should be large concave template than 40 ~ 70mm length, its width can be larger or equal to the width of the concave template . The thickness of the die holder can determine the reference standard mold base, usually 1.0 to 1.5 times the thickness of the concave template to ensure that there is sufficient strength and stiffness. Guangzhou precision drawing parts manufacturers for large non-standard mold base must also be based on the actual needs, according to the casting process requirements and design specifications for the design of castings. If you are interested in our products, please call us, negotiate!