Modelling and experimental analysis of the effects of tool wear on form errors in stainless steel blanking

被引：38

作者：

Hernandez, J. J. ^{[1
]}

Franco, P. ^{[1
]}

Estrems, M. ^{[1
]}

Faura, F. ^{[1
]}

机构：

[1] Univ Politecn Cartagena, Dept Ingn Mat & Fabricat, E-30202 Cartagena, Spain

来源：

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY | 2006年 / 180卷 / 1-3期

关键词：

blanking; effective clearance; form errors; sheet-metal forming; tool wear;

D O I：

10.1016/j.jmatprotec.2006.05.015

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The main defects that characterize the quality and accuracy of blanked parts are the form errors which can be found on the blanked surface. These defects are basically related to tool wear and process parameters. This work presents theoretical modelling of the effects of tool wear on the shearing mechanism and resulting form errors. To this end, a new parameter denominated effective clearance, which characterizes the distance between a punch and the die cutting edge when a tool is worn, is defined. An experimental analysis of form errors as a function of this new parameter is made, using 6 and 8 mm AISI A2 steel punches and 1 mm thick AISI 304 stainless steel sheet. Finally, design criteria are proposed for the process parameters to fulfil the quality requirements of blanked parts. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：143 / 150

页数：8

共 16 条

[1]

BROKKEN D, 1997, COMPUTATIONAL PLASTI, V2, P1417

[2] Finite element simulation of the effect of clearance on the forming quality in the blanking process [J].

Fang, G ;

Zeng, P ;

Lou, LL .

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2002, 122 (2-3) :249-254

[3] Criterion for tool wear limitation on blanking 18-8 stainless steel strips [J].

Faura, F ;

Lopez, J ;

Sanes, J .

REVISTA DE METALURGIA, 1997, 33 (05) :304-310

[4] Tool life equation for blanking 18-8 stainless steel strips [J].

Faura, F ;

Lopez, J ;

Sanes, J ;

Garcia, A .

REVISTA DE METALURGIA, 1998, 34 (04) :328-334

[5] A decision support system for sheet metal blanking process parameters selection [J].

Faura, F ;

Sebastián, MA ;

Zamora, R .

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2001, 118 (1-3) :371-376

[6] Finite element analysis of optimum clearance in the blanking process [J].

Faura, F ;

Garcia, A ;

Estrems, M .

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 1998, 80-1 :121-125

[7] Prediction of ductile fracture in metal blanking [J].

Goijaerts, AM ;

Govaert, LE ;

Baaijens, FPT .

JOURNAL OF MANUFACTURING SCIENCE AND ENGINEERING-TRANSACTIONS OF THE ASME, 2000, 122 (03) :476-483

[8] Design of experiment based analysis for sheet metal blanking processes optimisation [J].

Hambli, R .

INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY, 2002, 19 (06) :403-410

[9] Blanking tool wear modeling using the finite element method [J].

Hambli, R .

INTERNATIONAL JOURNAL OF MACHINE TOOLS & MANUFACTURE, 2001, 41 (12) :1815-1829

[10]

JEONG SH, 1996, ADV TECHNOLOGY PLAST, P631

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