Mechanical cutting
Through punching, cutting, friction and other machinery to achieve.
(1) cutting, punching and shearing when the steel plate thickness ≯ 12 cm, the shearing machine, combined punching and shearing machine for cutting steel, high speed, high efficiency, but slightly rough incision.
The cutting cutting: using hacksaw machine, band saw machine and other cutting steel, better precision.
3, friction cutting: the use of friction sawing machine, grinding wheel cutting machine and other cutting steel, fast, but the incision is not clean enough, big noise.
Plasma cutting
It can cut any metal, especially stainless steel and non-ferrous metal aluminum and copper with high melting point.
3. The molding
According to the design requirements, using processing equipment and a certain tooling die plate or steel bending into a certain shape process. Have cold bend and hot bend two kinds of methods commonly.
(1) cold bending. The process of cold bending of steel plate or section steel includes rolling bending of rolling machine, bending of pressing machine, top bending and drawing bending, etc. All kinds of process methods should make corresponding tire film according to the section shape, material, specification and bending radius of the section, and the quasi-formal processing after the test bending meets the requirements. The allowable deviation of free size of parts after cold bending should conform to the corresponding regulations.
(2) hot bending. Also called simmer bending, is the steel is heated to 1000 ℃ ~ 1100 ℃, dark yellow simmer bending immediately, and in 500 ℃ ~ 550 ℃ (black) before the end. Steel such as heated above 1100 ℃, the lattice will happen fissure, brittle materials, causing a significant lower quality and cannot be used; If less than 550 ℃, steel blue brittle and cannot guarantee the quality of heat bending, so must grasp the heating temperature.
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