Anti-galling property of a diamond-like carbon coated tool in aluminum sheet forming

A bending test is carried out for the evaluation of the anti-galling performance of a diamond-like carbon (DLC) coated tool in aluminum sheet forming. The DLC coated tool is found to have an excellent anti-galling performance in aluminum sheet forming. White spindle oil without chloride EP-additive such as chlorinated paraffin can be used as lubricant. In the case of ordinary tools, white spindle oil lubricant without chloride causes severe galling.