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Method for forming metal step part by adopting viscous medium and forming mold set

A viscous medium and step technology, applied in the field of viscous medium forming, method and forming die set for metal stepped parts, can solve the problem of poor plastic deformation ability and forming requirements

Active Publication Date: 2021-06-08
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For aluminum alloy stepped parts, which have poor plastic deformation ability and complex shapes, only relying on viscous medium for forming cannot fully meet the forming requirements, and a new forming method that is more in line with the deformation characteristics of such parts is needed.

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  • Method for forming metal step part by adopting viscous medium and forming mold set
  • Method for forming metal step part by adopting viscous medium and forming mold set
  • Method for forming metal step part by adopting viscous medium and forming mold set

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Embodiment Construction

[0033] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, but not all of them. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the protection scope of the present application.

[0034] The following discussion provides several embodiments of the application. Although each embodiment represents a single combination of the application, different embodiments of the application can be replaced or combined in combination, so the application can also be considered to include all possible combinations of the same and / ...

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Abstract

The invention provides a method for forming a metal step part by adopting a viscous medium and a forming mold set. The method comprises the following steps of firstly, manufacturing a preform with a first-stage step, and then forming a second-stage step on the first-stage step of the preform through a first female mold and a floating mold by adopting a viscous medium pressure forming method. According to the method provided by the invention, the viscous medium can simultaneously form non-uniform pressure and tangential viscous adhesion stress on the surface of a plate, the tangential viscous adhesion stress improves the thickness shear stress of the plate, local reduction of the wall thickness during forming is avoided, the uniformity of the wall thickness after the plate is deformed is ensured, and the purposes of controlling the thickness change of the plate and avoiding local thinning are achieved. In addition, through a two-time forming scheme, shape errors caused by one-time forming are avoided, and the diversity of products with complex section characteristics is improved.

Description

technical field [0001] The present application relates to the technical field of viscous medium pressure forming, in particular to a method for forming a metal stepped piece using viscous medium and a forming die set. Background technique [0002] The shape of the aluminum alloy stepped part is complex, and the plasticity of the aluminum alloy material is low, which brings difficulties to the forming of the part. During forming, the area with large local deformation is prone to excessive thinning or even cracking defects. As a soft molding method, viscous medium forming can effectively control the flow of materials by adjusting the pressure distribution, realize the control of the deformation sequence of the sheet metal, improve the formability of the sheet metal, achieve the control of the thickness change of the sheet metal and avoid local thinning Purpose. For aluminum alloy stepped parts, which have poor plastic deformation ability and complex shapes, only relying on vi...

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Application Information

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IPC IPC(8): B21C25/02
CPCB21C25/02
Inventor 王忠金冯业坤杨继平易军马瑞
Owner HARBIN INST OF TECH
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