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Hot forming die quenching

A mold quenching and thermoforming technology, applied in the direction of forming tools, manufacturing tools, metal processing equipment, etc., can solve the problems of slowness and trouble

Active Publication Date: 2017-02-22
AUTOTECH ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But these methods are quite slow and cumbersome, because the laser heating is performed after the HFDQ process

Method used

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  • Hot forming die quenching
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Examples

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Embodiment Construction

[0024] figure 1 A part of a tool for manufacturing a thermoformed structural part is shown according to an example. The tooling may include an upper mating die and a lower mating die. exist figure 1 In , only the lower mold 10 is shown. The lower mold 10 may comprise two adjacent mold blocks 11 and 12 adapted to operate at different temperatures. For example, mold block 11 may include a heat source adapted to achieve a higher temperature than mold block 12 ("thermoblock"), which may include a cooling system adapted to achieve a lower temperature than mold block 11 ("thermal block"). "cold block"). In further examples, more die blocks may be provided in a single tool (and in each mating die), and other ways of adapting blocks to operate at lower or higher temperatures are also envisioned.

[0025] Throughout this specification and claims, higher temperatures are generally understood to be temperatures falling within the range of 350-550°C and lower temperatures are underst...

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Abstract

A tool for hot forming die quenching boron steel structural components having locally different microstructures and mechanical properties is described. The tool comprises upper and lower mating dies, each die being formed by two or more die blocks comprising a working surface that in use faces the structural component to be formed and side faces. The upper and lower dies comprise at least two neighbouring die blocks adapted to operate at different temperatures corresponding to zones of the structural component to be formed having locally different microstructures and mechanical properties, wherein the neighbouring die blocks are arranged with a gap between their side faces and end portions of the side faces of the neighbouring die blocks that are close to the working surface are designed such that in use they are in contact.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of European Patent Application EP14382233.6 filed on June 16, 2014. technical field [0003] The present disclosure relates to tools for thermoforming (and) die quenching for the manufacture of thermoformed vehicle structural components having regions of high strength and regions of increased ductility (soft zones). Background technique [0004] The need for weight reduction in the automotive industry has led to the development and implementation of lightweight materials and associated manufacturing processes and tools. Growing concerns about occupant safety have also led to the use of materials that increase the integrity of the vehicle during a crash while also improving energy absorption. [0005] The process, known as Hot Form Die Quenching (HFDQ), uses boron steel sheets to produce stamped parts with the properties of ultra-high strength steel (UHSS), with tensile strengths up ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D22/02B21D37/16
CPCB21D22/022B21D37/16C21D1/673C21D7/13
Inventor M·洛佩兹拉赫
Owner AUTOTECH ENG