Multi-direction hammering incremental forming method and products acquired by method

A technology of progressive forming and forming tools, applied in the direction of instrumentation, design optimization/simulation, calculation, etc., can solve the problem that the plate thickness cannot be adjusted freely, and achieve the effect of low cost and improved forming performance

Active Publication Date: 2017-06-13
QINGDAO TECHNOLOGICAL UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In contrast, the hammering angle of the existing hammering incremental forming is fixed at 90°, and th

Method used

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  • Multi-direction hammering incremental forming method and products acquired by method
  • Multi-direction hammering incremental forming method and products acquired by method
  • Multi-direction hammering incremental forming method and products acquired by method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] The implementation process of multi-directional hammer incremental forming is as follows: figure 1 As shown, as follows:

[0044] (1) Establish a three-dimensional CAD model of a variable-angle conical cup in UGNX8.0 software;

[0045] The generatrix of the cone cup in the three-dimensional CAD model is an arc line, the radius is 100m, the opening size of the cone cup is 100mm, and the angle ranges from 20° to 90°.

[0046] (2) The machining module in UGNX8.0 software generates the machining trajectory of continuous contact incremental forming. The precision of the incremental forming processing trajectory is set to 0.02mm, and the continuous processing trajectory is output in the form of discrete points through calculation.

[0047] (3) Enter the sine wave, and set the wavelength of each sine wave to meet the number of track points to be 18, and use the Lagrange linear interpolation method to interpolate the discrete processing track points output in step (2) to obta...

Embodiment 2

[0059] A plate-shaped formed part, namely the product, is obtained by the multi-directional hammering progressive forming method described in Implementation 1. After using steps (1)-(7) to obtain the corresponding program, then use an industrial pure aluminum 1060 plate with a thickness of 1mm to cut the plate into 230×230mm, so that the geometric center of the plate coincides with the geometric center of the forming fixture , press the plate around 15mm and clamp it; the forming tool is gradually formed point by point according to the wave trajectory data generated in step (7) under the control of the machine tool; the final product is obtained.

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Abstract

The invention discloses a multi-direction hammering incremental forming method and products acquired by the method. According to the method, tool machining tracks are compiled into fluctuation machining tracks, the directions, wave lengths and amplitudes of the fluctuation tracks are changed, so that hammering directions, frequencies and amplitudes of a tool are controlled, and multi-direction hammering incremental forming of periodic contact between the tool and plates can be achieved on a three-axis numerical control milling machine and a special incremental forming machine. According to the method, non-uniform deformation of the plates in the common incremental forming process can be improved, so that the forming performance of the plates can be improved.

Description

technical field [0001] The invention relates to a multidirectional hammering type progressive forming method and a product obtained by the method, and belongs to the technical field of sheet metal progressive forming processing. Background technique [0002] Sheet metal incremental forming technology adopts the idea of ​​rapid prototyping technology "layered manufacturing", driven by CAD model, can form products without mold or only punch, very suitable for processing single-piece or small-batch thin-shell products , is a favorable supplement to traditional stamping. It has broad application prospects in manufacturing industries such as aviation, aerospace, home appliances, medical equipment and automobiles. [0003] Commonly known as incremental forming, the tool and the sheet are always in contact during the forming process, so it is also called continuous contact incremental forming. If during the forming process, the tool also performs a "hammering" action while moving...

Claims

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Application Information

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IPC IPC(8): G06F17/50B21D31/00
CPCB21D31/00G06F30/20
Inventor 王进李丽华姜虎森王海涛王小连周鹏柳琪王旭金烨堂
Owner QINGDAO TECHNOLOGICAL UNIVERSITY
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