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Streamline self-bending extrusion die and design method thereof

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

Active Publication Date: 2021-06-11
SHANDONG UNIV OF TECH
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  • Claims
  • Application Information

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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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  • Streamline self-bending extrusion die and design method thereof
  • Streamline self-bending extrusion die and design method thereof
  • Streamline self-bending extrusion die and design method thereof

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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] Such as 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 bou...

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Abstract

The invention provides a streamline self-bending extrusion die and a design method thereof, and relates to the technical field of dies, and the design method comprises the following steps: designing a boundary control curve on one side of the cross section of a die cavity based on a sine function; designing boundary control curves on the two sides of the section of the die cavity to be asymmetric; performing smooth transition based on the boundary control curves on the two sides to obtain a curved surface control function of the mold cavity; arranging a working belt structure is behind a die cavity of the extrusion die, wherein the wall surface of the working belt structure is parallel to the extrusion direction; by means of the streamline die cavity of the extrusion die, non-uniform flowing can occur in the material extrusion process, then a self-bending extrusion profile is obtained, flowing of the streamline die cavity is closer to a real material flowing path, the streamline adaptive die can reduce extrusion loads, and local damage to the die is reduced; the technical problems of resilience, wrinkling and section deformation during bending processing of the profile in the prior art are relieved, and the technical problem of load reduction during extrusion is solved.

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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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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