Sheet material non-isothermal punching forming device

Abstract

The invention relates to a plate non-isothermal molding die device, pertaining to the mechanical engineering field, which is mainly used for non-isothermal punching and molding of plate castings. The materials can comprises such metals hard to molding in normal temperature as magnesium alloy, aluminum alloy and titanium alloy; the plate non-isothermal punching and molding device has a concave mold, a convex mold, a binder ring, a constant temperature circulation system arranged inside the concave mold and a heating system arranged at the top of the binder ring and a cooling system arranged at the bottom of the convex mould. The invention heats the binder ring, cools the lower surface of the convex mould with a circulation liquid, and ensures that a temperature gradient can be formed in the binder ring, a billet and the convex mould after placing a billet hybrid mould, while the low temperature is maintained in the convex mould, particularly at the round edge of the convex mould. The lower temperature at the round edge of the convex mould can effectively prevent deformed billets from cracking due to insufficient strength caused by too high temperature, thus effectively improving the molding performance of the plates; the constant temperature circulation liquid adopted in the concave mould is beneficial to maintaining the stability of molding technique conditions.

Description

technical field [0001] The invention belongs to the field of mechanical engineering, and specifically relates to a plate non-isothermal forming die device, which is mainly used for non-isothermal stamping and forming of plate parts. The material may include magnesium alloy, aluminum alloy, titanium alloy and other metal materials that are difficult to form at normal temperature. Background technique [0002] The stamping forming of plate parts is to use the punch, die and blank holder to deform the sheet into the required shape and size. This forming process has been widely used in industrial production because of its high productivity, low cost and excellent product quality. However, at present, a large number of stamping production activities are carried out at room temperature. For some high specific strength materials that have attracted increasing attention due to environmental protection and energy saving, such as magnesium alloys, aluminum alloys and titanium alloys, ...

AI Technical Summary

Problems solved by technology

This kind of stamping forming device can effectively form a temperature field that is beneficial to stamping forming inside the blank. However, due to the heat conduction of the rounded corner of the die with a high temperature to the nearby deformed part, this part of the blank has an excessively high temperature. The low strength exhibited at excessively high temperatures significantly increases its likelihood of fracture

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