Title:
硬化鋼部品を製造するための方法および装置
Document Type and Number:
Japanese Patent JP6692911
Kind Code:
B2
Abstract:
The invention relates to a method for press hardening sheet steel components in which a blank is detached from a sheet steel band composed of a hardenable steel alloy and the blank is then austenitized, in that it is heated to a temperature greater than Ac3 and is then inserted into a forming tool and formed in the forming tool, and during the forming, is cooled at a speed greater than the critical hardening speed, characterized in that in order to inhibit microcracks of the second type from being produced during the forming and hardening process in the sheet metal blanks that are to be formed, oxygen is supplied adjacent to the positive radii and/or drawing edges; the invention also relates to a device for performing this method.
Inventors:
Colnberger Siegfried
Haslemeyer Johannes
Haslemeyer Johannes
Application Number:
JP2018541172A
Publication Date:
May 13, 2020
Filing Date:
February 07, 2017
Export Citation:
Assignee:
Foestal Pines Star Game Behr
Foestal Pinet Metal Forming Game Behr
Foestal Pinet Metal Forming Game Behr
International Classes:
B21D22/20; B21D24/00
Domestic Patent References:
| JP2011195958A | ||||
| JP2007505211A | ||||
| JP2007098459A | ||||
| JP2014088625A | ||||
| JP2008509284A | ||||
| JP2013091099A | ||||
| JP1084826U | ||||
| JP5901493B2 | ||||
| JP5830056B2 | ||||
| JP200836709A |
Foreign References:
| WO2011081043A1 | ||||
| WO2015037657A1 | ||||
| WO2012161192A1 | ||||
| WO2013001630A1 | ||||
| US20110232354 | ||||
| WO2005032740A1 |
Attorney, Agent or Firm:
Kazuko Fujita