The most important basis for the selection of materials for the processing of precision parts in Shenzhen refers to the material properties that the parts should have during use, including mechanical properties, physical properties, and chemical properties.

For most parts, mechanical properties are the main performance indicators, and the main parameters that characterize mechanical properties include strength limit, elastic limit, yield strength, elongation, area shrinkage, impact toughness, and hardness, such as HRC or HBS.

How to choose materials in the process of machining materials for Shenzhen Machinery Precision Parts. What is the process performance of the material?

The processing properties of materials mainly include: casting, pressure processing, cutting, heat treatment and welding. The quality of its processing properties directly affects the quality, production efficiency and cost of parts. Therefore, the process properties of materials are also one of the important basis for material selection.

(1) Cutting performance: Tool wear, power consumption, and surface finish of parts are markers for evaluating the cutting performance of metal materials, and are also one of the important criteria for selecting materials reasonably.

(2) Heat treatment: refers to the behavior of steel during heat treatment.

(3) Pressure processing performance: refers to the ability of steel to withstand hot and cold deformation. Good cold deformation performance is marked by good formability, high surface quality, and less susceptibility to cracking; while good hot deformation performance is marked by the ability to accept hot deformation, good oxidation resistance, large temperature range and small tendency to hot brittleness.

(4) casting performance: generally refers to the low melting point, crystallization temperature range is small alloy has good casting performance. Such as: alloy cocrystalline composition of the best casting.

(5) Weldability: To measure the weldability of a material, the strength of the weld zone is not lower than that of the base metal and no cracks are generated.

In short, good machining process of Shenzhen machinery precision parts can greatly reduce the power, material consumption, shorten the processing cycle and reduce the scrap rate. Excellent processing performance is an important way to reduce product costs.