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Streamlined self-bending extrusion die and its design method

A technology of extrusion dies and design methods, applied in design optimization/simulation, geometric CAD, special data processing applications, etc., and can solve problems such as wrinkling, profile springback, and load reduction

Active Publication Date: 2022-05-17
SHANDONG UNIV OF TECH
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Problems solved by technology

[0005] The purpose of the present invention is to provide a streamlined self-bending extrusion die and its design method to alleviate the technical problems of springback, wrinkling, and cross-sectional deformation during the bending process of the profile existing in the prior art and to reduce the load during extrusion. technical problem

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  • Streamlined self-bending extrusion die and its design method
  • Streamlined self-bending extrusion die and its design method
  • Streamlined self-bending extrusion die and its design method

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Embodiment Construction

[0085] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0086] like Figure 1-Figure 7 As shown, a design method of a streamlined self-bending extrusion die comprises the following steps: designing the boundary control curve on one side of the cavity 101 section based on the sine function; designing the cavity 101 section on the other side based on the boundary control curve designed by the sine function The function of the boundary control curve on one side, the boundary control curves on both sides of the design cavity 101 cross-section are asymmetrical; based on the bounda...

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Abstract

The invention provides a streamlined self-bending extrusion die and a design method thereof, relating to the technical field of dies, comprising the following steps: designing the boundary control curve on one side of the die cavity section based on a sine function; designing the boundary control on both sides of the die cavity cross section The curve is asymmetrical; based on the boundary control curves on both sides, a smooth transition is made to obtain the surface control function of the cavity; a working belt structure is added behind the cavity of the extrusion die, and the wall surface of the working belt structure is parallel to the extrusion direction; The streamlined cavity of the compression mold can make the material flow unevenly during the extrusion process and then obtain the self-bending extrusion profile. The flow of the streamlined cavity is closer to the real material flow path, and the streamlined adaptable mold can reduce the extrusion load, The local damage of the mold is reduced; the technical problems of springback, wrinkling and section deformation during the bending process of the profile in the prior art are alleviated, and the technical problems of reducing the load during extrusion are alleviated.

Description

technical field [0001] The invention relates to the technical field of molds, in particular to a streamlined self-bending extrusion mold and a design method thereof. Background technique [0002] Bending aluminum profiles are widely used in the fields of aerospace, automobile, machinery manufacturing, shipbuilding and chemical industry. With the rapid development of industrial economy, the demand for curved aluminum profile structural parts in various fields is increasing. Usually, the processing of curved profiles adopts advanced The way of bending after extrusion, traditional secondary processing technologies such as push bending, stretch bending, bending, and rolling will bring defects such as cracking, cross-sectional distortion, instability, wrinkling, and springback of aluminum profiles, which will seriously affect the bending of aluminum profiles. molding rate. [0003] Extrusion and bending integrated molding is adopted in the prior art, and a bending device compose...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/17G06F30/20
CPCG06F30/17G06F30/20
Inventor 朱光明常征闵范磊岳博文刘惠苹
Owner SHANDONG UNIV OF TECH
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