Guidelines for Tool-Size Selection for Single-Point Incremental Forming of an Aerospace Alloy
Guidelines for Tool-Size Selection for Single-Point Incremental Forming of an Aerospace Alloy
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DOI：
10.1080/10426914.2012.700151
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发表时间：
2013-03-01
影响因子：
4.8
通讯作者：
Hayat, N.
中科院分区：
文献类型：
--
作者：
Hussain, G.;Khan, H. R.;Hayat, N.
单点渐进成形（SPIF）是一种相对新颖的板材成形工艺，可以低成本生产小批量产品。本文介绍了航空航天级合金 (AA-2024) SPIF 的刀具尺寸选择指南。阐明了工具尺寸（相对于所用板材厚度）对 SPIF 中可成形性（即可喷洒性）的作用。采用响应面法来研究板厚（to）和刀具半径（r）对喷涂性能的影响。方差分析（ANOVA）的结果表明，板材厚度和刀具半径单独并不显着，但是这些参数之间存在很强的交互作用。此外，对于特定的片材厚度，仅存在一个r/t o 值，在该值下在给定的一组条件下可喷洒性可以最大化。此外，对于给定的板材厚度，如果使用半径小于特定值的工具（即 r/t o
Single-point incremental forming (SPIF) is relatively a novel sheet forming process to produce small lots with low cost. In this article, guidelines for tool size selection for SPIF of an aerospace grade alloy (AA-2024) are presented. The role of tool size, with respect to sheet thickness employed, on the formability in SPIF (i.e., spifability) is clarified. The response surface method is employed in order to study the significance of sheet thickness (t o) and tool radius (r) on the spifability. The results of analysis of variance (ANOVA) show that the sheet thickness and tool radius are not significant individually, however, a strong interaction between these parameters exists. Moreover, for a particular sheet thickness, there exists only one r/t o value at which the spifability can be maximized under a given set of conditions. Furthermore, for a given sheet thickness, if a tool with radius lesser than a particular value is used (i.e., r/t o