A composite manufacturing device and method for electric arc additive material and cryogenic rolling forming

Abstract

A compound manufacturing device and method for electric arc additive material and cryogenic rolling forming. The device includes a base and a workbench. The workbench is set on the base and can move horizontally on the base. module, temperature maintenance module and arc additive module, and a cryogenic treatment module is also arranged on the base. It also includes a compound manufacturing method of electric arc additive material and deep cold rolling forming. It also includes a compound manufacturing method of electric arc additive material and deep cold rolling forming. The invention combines arc material addition with cryogenic deformation. The cryogenic deformation utilizes the excellent plastic deformation ability of certain metal materials under cryogenic conditions and the fact that the cryogenic environment hinders dislocation movement and recrystallization behavior during the deformation process, thereby promoting the material Grain refinement improves material strength and toughness.

Description

technical field [0001] The invention relates to an additive manufacturing device and method, in particular to a composite manufacturing device and method for electric arc additive and cryogenic rolling forming. Background technique [0002] Arc additive manufacturing is an additive manufacturing technology that melts metal wires by arc heat and deposits the final parts layer by layer according to the three-dimensional shape of the parts. Arc additive manufacturing has high deposition efficiency and low manufacturing cost, and has great potential in the rapid and flexible manufacturing of large-scale metal components. However, the arc heat input is high, and coarse grains are prone to appear inside the material, which will reduce the mechanical properties of the component and affect its large-scale application in industry. [0003] Rolling, as a plastic processing process, exerts a large pressure on the metal surface through the roll to cause a large plastic deformation of t...

AI Technical Summary

Problems solved by technology

The problems of this method are: (1) the fan has the problems of high failure rate and short service life under low temperature and harsh working conditions; (2) the fan or fan needs additional electric energy input, and at the same time, according to the energy relationship, liquid nitrogen cooling capacity is needed to Bridging this part of electric energy increases the consumption of liquid nitrogen. (3) In the cryogenic treatment device using fans, it is difficult to mix the fresh air with liquid nitrogen evenly, which will lead to poor temperature control accuracy.

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