Tool failure: a method for stress calculation of worn cutting tools

IF 3.2 3区工程技术 Q2 ENGINEERING, INDUSTRIAL

Cirp Annals-Manufacturing Technology Pub Date : 2025-01-01 DOI:10.1016/j.cirp.2025.03.032

Benjamin Bergmann (2), Jan Schenzel, Malte Kraeft

引用次数: 0

Abstract

Basic knowledge of mechanical stresses is essential for an adapted tool design. A method for calculating internal stresses based on measured external stresses is shown. This eliminates the need for modelling the tool, chip and workpiece interaction as it is required in FE-based chip formation simulations. Thus, in-situ elastoplastic effects, such as springback or built-up edges, are directly considered. Using this approach, internal stresses of worn cutting tools are calculated at different wear states in order to understand tool wear. The experimental investigations show that for the machining of AISI1045+N principal stresses σ₁ are the significant cause for tool failure.

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刀具失效：一种计算磨损刀具应力的方法

机械应力的基本知识是必要的，以适应工具的设计。给出了一种基于实测外应力计算内应力的方法。这消除了在基于fe的切屑形成模拟中对工具、切屑和工件相互作用进行建模的需要。因此，直接考虑了原位弹塑性效应，如回弹或堆积边。利用该方法，计算了刀具在不同磨损状态下的内应力，以了解刀具的磨损情况。试验研究表明，在AISI1045+N加工过程中，主应力σ1是导致刀具失效的重要原因。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Cirp Annals-Manufacturing Technology 工程技术-工程：工业

CiteScore

7.50

自引率

9.80%

发文量

137

审稿时长

13.5 months

期刊介绍： CIRP, The International Academy for Production Engineering, was founded in 1951 to promote, by scientific research, the development of all aspects of manufacturing technology covering the optimization, control and management of processes, machines and systems. This biannual ISI cited journal contains approximately 140 refereed technical and keynote papers. Subject areas covered include: Assembly, Cutting, Design, Electro-Physical and Chemical Processes, Forming, Abrasive processes, Surfaces, Machines, Production Systems and Organizations, Precision Engineering and Metrology, Life-Cycle Engineering, Microsystems Technology (MST), Nanotechnology.