Effect of powder lubricants on surface quality of aluminum alloy die-castings

Hitoshi Yae*, Ryosuke Kimura, Makoto Yosida, Gen Sasaki, Jin Pan, Koichi Yokoyama, Hideharu Fukunaga


研究成果: Article査読

3 被引用数 (Scopus)


In usual, the water-soluble lubricants are used in die-casting. But this system has fatal defect, namely, high-energy consumption and environmental problems. Recently, closed die system with use of powder lubricants is widely noticed. The effects of the contents of powder lubricant and die temperature on the quality of casting surface were investigated. The castings had a good correlation between surface glossiness and surface appearance according to the experts in the field of die cast, so surface glossiness was measured as one of the most important surface quality. The quality of casting surface was improved by decreasing the wax content in powder lubricants, because decreasing the wax content improved the glossiness, the flow line, and metal wave, and decreased the surface roughness. A high temperature of die improved the surface glossiness and roughness, because the fluidity was improved. Powder lubricants could provide a surface quality of castings better than conventional water-soluble lubricants.

ジャーナルKeikinzoku/Journal of Japan Institute of Light Metals
出版ステータスPublished - 2002 7

ASJC Scopus subject areas

  • 材料力学
  • 機械工学
  • 金属および合金
  • 材料化学


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