A new engineering and innovative materials research paper, Evaluation of Friction Properties of Magnesium Alloy during Hot Forging by Ring Compression Test, deals with friction properties and deformation resistance during hot forming of Mg-Al-Ca-Mn series magnesium alloys.
From the research abstract: “Friction coefficients between dies and magnesium alloys were obtained by ring compression tests that used graphite, PTFE, and an oil lubricant in a hot-forging process. Hot forging was performed under various conditions to clarify the effects of types of lubricants and slide motion of the press machines on friction properties.”
The study shows that graphite with an oil lubricant eliminated die sticking in hot forming of magnesium alloys.
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