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Rapid Tool Fabrication By Powder Metal Forging 粉末金属锻造快速制备刀具
发布日期: 1997-11-01
粉末金属(P/M)锻造工艺正在开发中,用于制造近净形状的模具。该工艺涉及使用专有的陶瓷粉末浆料混合物,该混合物可在室温下使用传统或自由成型制造(FFF)模型作为图案铸造成型。陶瓷铸件可用作工具,将工具钢粉末(包括H13和P20)锻造(固结和致密化)至97%以上的理论密度,且变形和收缩最小。由此产生的细晶粒微观结构产生的工具钢产品的机械性能优于传统的数控加工锻造工具钢模具和模具。 为了对该过程进行基准测试,对H13粉末冶金锻造工具钢模具镶块进行了案例研究。
A powder metal (P/M) forging process is being developed for making near-net shaped mold and dies. The process involves the use of a proprietary ceramic powder slurry mix that can be cast to shape at room temperature using conventional or free-form fabrication (FFF) models as patterns. The ceramic castings can be used as tools to forge (consolidate and densify) tool steel powders (including H13 and P20) to over 97% theoretical density with minimal distortion and shrinkage. The resulting fine grain microstructure yields tool steel products with mechanical properties superior to traditionally CNC machined wrought tool steel molds and dies. To benchmark the process, a case study was made on a H13 P/M forged tool steel mold insert.
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发布单位或类别: 日本-日本船用装置工业会
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