The cause and process measures of aluminum profile deformation

Aluminum alloy is one of the most widely used non-ferrous metal structural materials in industry, in aviation, aerospace, automotive, machinery manufacturing, marine and chemical industries have aluminum alloy profile. 

In order to reduce the weight in the aircraft structure, a large number of aluminum alloy material thin-walled parts, because of aluminum alloy parts material thermal expansion coefficient is large, thin-wall processing is easy to deform. 

Especially in the use of free forging blanks when the margin is large, deformation problems are more prominent.

1. Aluminum alloy profile cutting deformation reasons

There are many reasons for the deformation of aluminum alloy parts, which are related to material, part shape, process conditions, cutting oil performance, etc. There are the following aspects: deformation caused by stress in the blank, deformation caused by cutting force, cutting heat, deformation caused by clamping force.

2.Measures of reducing the deformation of the aluminum profile process 

1) Reduce the internal stress of the blanks

(2) Choose the tool geometry parameters reasonably

(3) Improve the tool structure

(4) Fine grinding knife teeth

(5) Strict control of tool wear standards

(6) Improve the clamping method of the profile

(7) The reasonable selection of cutting oil