<abstract xmlns="http://www.w3.org/1999/xhtml"><p>The influence of scatter of principal input parameters of the forging system on the dimensional accuracy of product and on the tool life for closed-die forging process is presented in this paper. Scatter of the essential input parameters for the closed-die upsetting process was adjusted to the maximal values that enabled the reliable production of a dimensionally accurate product at optimal tool life. An operating window was created in which exists the maximal scatter of principal input parameters for the closed-die upsetting process that still ensures the desired dimensional accuracy of the product and the optimal tool life. Application of the adjustment of the process input parameters is shown on the example of making an inner race of homokinetic joint from mass production. High productivity in manufacture of elements by cold massive extrusion is often achieved by multiple forming operations that are performed simultaneously on the same press. By redesigning the time sequences of forming operations at multistage forming process of starter barrel during the working stroke the course of the resultant force is optimized.</p></abstract>

The influence of scatter of principal input parameters of the forging system on the dimensional accuracy of product and on the tool life for closed-die forging process is presented in this paper. Scatter of the essential input parameters for the closed-die upsetting process was adjusted to the maximal values that enabled the reliable production of a dimensionally accurate product at optimal tool life. An operating window was created in which exists the maximal scatter of principal input parameters for the closed-die upsetting process that still ensures the desired dimensional accuracy of the product and the optimal tool life. Application of the adjustment of the process input parameters is shown on the example of making an inner race of homokinetic joint from mass production. High productivity in manufacture of elements by cold massive extrusion is often achieved by multiple forming operations that are performed simultaneously on the same press. By redesigning the time sequences of forming operations at multistage forming process of starter barrel during the working stroke the course of the resultant force is optimized.

Reliability of system for precise cold forging

Faculty of Natural Sciences and Engineering

Centre for Computational Continuum Mechanics

Materials and Geoenvironment

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

{"article-title":"Reliability of system for precise cold forging"}

The influence of scatter of principal input parameters of the forging system on the dimensional accuracy of product and on the tool life for closed-die forging...

Reliability of system for precise cold forging

Published Online: Aug 26, 2017

Page range: 91 - 102

Received: Mar 07, 2017

Accepted: Apr 20, 2017

DOI: https://doi.org/10.1515/rmzmag-2017-0006

Keywords
cold foring, process reliability, product accuracy, tool life, FE simulation

© 2017 Vid Krušič et al., published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Reliability of system for precise cold forging

Published Online: Aug 26, 2017

Page range: 91 - 102

Received: Mar 07, 2017

Accepted: Apr 20, 2017

DOI: https://doi.org/10.1515/rmzmag-2017-0006

Keywordscold foring, process reliability, product accuracy, tool life, FE simulation

© 2017 Vid Krušič et al., published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
cold foring, process reliability, product accuracy, tool life, FE simulation