Hot stamping die apparatus

US8215147B2 · kind B2 · utility

Assignee

• MAGNA INTERNATIONAL INC. · CA

Inventors

• Frank A. Horton · Rochester Hills, US
• Boris Shulkin · Beverly Hills, US
• Bradford L. Hastilow · Rochester Hills, US
• Jim Metz · Troy, US
• James R. Judkins · Leonard, US
• Monty Hansen · Sterling Heights, US
• Seetarama S. Kotagiri · Rochester Hills, US
• Andreas Janssen · Kohlenbissen, DE

Key dates

• Filing date: Jul 12, 2007
• Grant date: Jul 10, 2012
• Expiry date: Jun 2, 2029

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B21D37/16
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

A hot forming die that includes a first die and a second die. The first die has a first die structure that is formed of a tool steel. The first die structure has a first die surface and a plurality of first cooling apertures. The first die surface has a complex shape. The first cooling apertures are spaced apart from the die surface by a first predetermined distance. The second die has a second die surface. The first and second die surfaces cooperate to form a die cavity. Related methods for forming a hot forming die and for hot forming a workpiece are also provided.