Method for bending metal material, bending machine, bending-equipment line, and bent product thereof

Abstract

A method of push-through bending processing for a metal material, comprising, while sequentially or continuously extruding a material to be processed from the upstream side, carrying out bending processing thereof on the downstream side, wherein the metal material is clamped by means of mobile roller dies and under controlling of the position and / or moving speed of the mobile roller dies, heated at a temperature range permitting local plastic deformation and permitting quench hardening by means of heating means and cooling means disposed on the periphery of the metal material, followed by application of a bending moment and quenching. Further, there are provided a relevant bending processing apparatus and bending processing equipment line. Even in the event of processing to achieve continuous bending involving two-dimensionally different bending directions, or continuous bending involving three-dimensionally different bending directions, of the metal material, and even in the event of requirement of bending processing for a metal material with greater strength, a metal material with high shape fixability and uniform hardness distribution can be obtained efficiently at low cost. Accordingly, wide application thereof can be found as an increasingly sophisticated automobile part bending processing technology.

Description

technical field [0001] The present invention relates to a method of bending metal materials, a bending device thereof, and a series of bending equipment, and more specifically relates to a continuous bending (for example, S In the case of bending), or in the case of continuous bending in which the bending direction is different in three dimensions, a metal material bending method that can be efficiently bent, a processing device to which the bending method can be applied, and a bending facility Columns, and bent products made of them. Background technique [0002] In recent years, due to concerns about the global environment, there has been an increasing demand for lightweight and high-strength metal materials for structural use. For example, in the automobile industry, the requirements for the safety of the vehicle body have increased, and the requirements for the lightweight and high strength of automobile parts have become more and more stringent. From the perspective of...

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Problems solved by technology

In addition, as the metal material is heated, burns are likely to occur on the surface of the movable rotary die, so further improvement of the thermal bending processing device is required.

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