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What should we do with the thermal deformation of the CNC cu

Part of the article: Popularity:Time:2018-07-03 16:32

Answer: in the process of flame cutting and plasma cutting, we can often meet the thermal deformation of the CNC cutting machine. In order to reduce the heat distortion caused by the cutting torch, many enterprise operators focus on the control and grasp of the cutting process when dealing with this problem. Although it is an important way to effectively reduce the influence of thermal deformation from the formation of the thermal deformation to the details and technology of the cutting process, the Longmen type CNC cutting machine manufacturers have integrated many users in the field to find that the effect of reducing the thermal deformation of the CNC cutting machine needs both internal and external repair.
1. The treatment and method of the cutting workpiece:
The commonly used method is to spray rust prevention after the shot blasting, and then spray the small iron sand to the surface of the steel plate by the impact force of the iron sand on the steel plate, and then spray the antirust paint with good flame retardancy and conductivity.
2. The treatment of the surface of the steel plate:
Under normal circumstances, after the steel plate passes through a series of intermediate links from the iron and steel plant to the cutting workshop, the surface of the steel plate is unavoidable to produce an oxide scale. Or during the rolling process, a layer of oxide skin is attached to the surface of the steel plate. Moreover, these oxide skins have high melting points and are not easy to burn and dissolve. This not only increases the preheating time but also reduces the cutting speed. At the same time, it is easy to block the cutting nozzle of the CNC cutting machine through the heating of the oxidation skin around the cutting nozzle, thus reducing the service life of the cutting machine, so that the surface of the steel plate is as much as possible before cutting. The pretreatment of rust removal is carried out.
3. Control of thermal deformation:
In the actual cutting process of the CNC cutting machine, due to the uneven heating and cooling of the steel plate, the internal stress of the material will cause different degrees of bending or displacement of the cut workpiece, which is the shape distortion and the cutting dimension deviation. Because the internal stress of material can not be balanced and completely eliminated, we can only take some measures to reduce thermal deformation.

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