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公开(公告)号:US20090320968A1
公开(公告)日:2009-12-31
申请号:US12493390
申请日:2009-06-29
申请人: Johannes Boeke , Markus Pellmann
发明人: Johannes Boeke , Markus Pellmann
IPC分类号: C21D8/02
CPC分类号: C21D9/48 , C21D1/185 , C21D1/34 , C21D1/673 , C21D2221/00
摘要: A shaped part having at least two structural regions of different ductility is made from one unitary blank of a hardenable steel alloy by first heating the entire blank to an elevated temperature below an AC3 point of the alloy. Then only first regions of the blank are heated by a plurality of infrared lamps to above the AC3 point of the alloy while maintaining the rest of the blank below the AC3 point of the alloy. Finally the first regions are hardened in a thermoshaping and hardening tool.
摘要翻译: 具有不同延展性的至少两个结构区域的成形部件由可硬化钢合金的一个整体坯料制成,首先将整个坯料加热到低于合金的AC3点的高温。 然后只有坯料的第一区域被多个红外灯加热到合金的AC3点以上,同时保持坯料的其余部分低于合金的AC3点。 最后,第一个区域在热硬化和硬化工具中硬化。