Lengthening-remolding method of automotive parts

A technology of auto parts and parts, which is applied in the field of lengthening and restructuring of auto parts, can solve the problems of reduced fatigue strength of parts, short life of parts, hidden safety hazards, etc., to control welding deformation and stress concentration, improve fatigue limit, The effect of increasing strength

Inactive Publication Date: 2014-08-13
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. The welding area is concentrated, resulting in the inability to effectively release the welding stress and increasing the risk of component fracture
[0005] 2. Due to the use of C02 gas shielded welding (manual), there are defects such as pores, slag inclusions or cracks in the welds, resulting in short service life of the restructured parts and even serious safety hazards
[0006] 3. Through the comparative analysis of CAE data, the fatigue strength of parts after the traditional method is greatly reduced

Method used

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  • Lengthening-remolding method of automotive parts
  • Lengthening-remolding method of automotive parts
  • Lengthening-remolding method of automotive parts

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The length of a certain component on an existing automobile is 1200mm. For the purpose of new product design and development, it needs to be lengthened by 60mm, that is, the total length reaches 1260mm.

[0036] The above-mentioned auto parts are lengthened, and the method for lengthening and remanufacturing thereof comprises the following steps:

[0037] 1) if figure 1 with figure 2 As shown in , select two identical parts to be processed and divide them into the first part A and the second part B;

[0038] 2) if figure 1 with figure 2 , mark the longitudinal centerlines of the first part A and the second part B respectively;

[0039] 3) if figure 2 As shown, the second part B is cut along the longitudinal centerline of the second part B, and the left part after cutting is selected as the left part b;

[0040] 4) if image 3 As shown, taking the longitudinal centerline of the first part A as the reference, along the length direction of the first part A, offse...

Embodiment 2

[0048] For the auto parts in the first embodiment, another method for lengthening and reforming the auto parts includes the following steps:

[0049] 1) if figure 1 with figure 2 As shown in , select two identical parts to be processed and divide them into the first part A and the second part B;

[0050] 2) if figure 1 with figure 2 , mark the longitudinal centerlines of the first part A and the second part B respectively;

[0051] 3) if figure 2 As shown, the second part B is cut along the longitudinal centerline of the second part B, and the left part after cutting is selected as the left part b;

[0052] 4) if image 3 As shown, taking the longitudinal centerline of the first part A as the reference, along the length direction of the first part A, offset 60mm to the left, and mark the longitudinal cutting line on the first part A;

[0053] 5) if image 3 As shown, cut along the longitudinal cutting line of the first part A, and select the right part after cutting...

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Abstract

The invention discloses a lengthening-remolding method of automotive parts. The lengthening-remolding method comprises the following steps: selecting two identical to-be-machined parts, namely a first part and a second part; respectively marking longitudinal center lines of the first part and the second part; cutting the second part along the longitudinal center line of the second part, and selecting a cut left-side part as a left component; leftwards skewing for a to-be-lengthened length along the length direction of the first part by taking the longitudinal center line of the first part as a basis, and marking a longitudinal cutting line on the first part; cutting along the longitudinal cutting line of the first part, and selecting a cut right-side part as a right component; producing a connecting piece in reference to the internal sizes and structures of the first part and the second part; inserting the connecting piece from notches of the right component and the left component; welding the notches. According to the lengthening-remolding method, the lengthened part only has a welding line, so that the welding deformation and the stress concentration are well controlled, and the strength of the remolded part is improved.

Description

technical field [0001] The invention belongs to the field of auto parts manufacturing, in particular to a method for lengthening and reforming auto parts. Background technique [0002] In the new product development stage, in order to reduce the development cost and shorten the product development cycle, the new product concept design is mainly carried out before the new product design data is frozen. After the conceptual product design stage is completed, in order to verify the feasibility of the design scheme, it is usually necessary to carry out relevant verification and basic data collection work on the design scheme. At this time, it is necessary to make samples for the preliminary verification of the relevant design scheme. Part molds to realize sample production. Since the mold development cycle is long on the one hand, and on the other hand, the design scheme is still in the verification stage, there are certain risks. If the mold development is carried out now, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00
CPCB23P15/00B23P2700/50
Inventor 吴焱杰张财刘江波孙丁柱薛奎许宏伟
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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