Manufacturing and characterisation of highly porous metal bonded diamond grinding wheels

IF 4.6 2区工程技术 Q2 ENGINEERING, MANUFACTURING

CIRP Journal of Manufacturing Science and Technology Pub Date : 2025-02-01 DOI:10.1016/j.cirpj.2024.12.006

Berend Denkena, Benjamin Bergmann, Lennart Puls, Daniel Raffalt, Maren Friedrich, Kai Lübbermann

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Abstract

Currently, there is no economical method for producing porous metal-bonded diamond grinding wheels. The availability of such a method would allow for the combination of the advantages of a highly porous vitrified-bonded grinding wheel with the high strength of a metal-bonded grinding wheel. This work investigates two methods for the production of porous metal-bonded grinding wheels to achieve this goal. It is shown that it is possible to produce porous metal bonds for grinding tools based upon small adjustments to a FAST sintering process. This allows the production of porous metal-bonded grinding tools with existing infrastructure and known bonding systems. A model is derived for the reproducible design of porosity up to 30 % by volume based on manufacturing parameters, as well as the influence of the pore content on the mechanical properties of the bond material. Secondly, a method for evaluating the self-sharpening behaviour of grinding wheel bonds depending on the workpiece material is proposed. In grinding experiments using dense and porous metal-bonded grinding wheels, the increased self-sharpening effect for the porous bond is confirmed as well as a reduction in grinding forces. This shows the high potential of metallic porous bonds with regard to self-sharpening.

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高多孔金属结合剂金刚石砂轮的制造与性能研究

目前，还没有经济的方法生产多孔金属结合剂金刚石砂轮。这种方法的可用性将允许将高多孔性玻璃结合剂砂轮的优点与金属结合剂砂轮的高强度相结合。本文研究了多孔金属结合剂砂轮的两种生产方法，以实现这一目标。结果表明，基于对FAST烧结工艺的微小调整，可以为磨削工具生产多孔金属键合。这使得多孔金属结合磨削工具的生产与现有的基础设施和已知的结合系统。基于制造参数，以及孔隙含量对粘结材料力学性能的影响，导出了可重复设计孔隙率高达30%的模型。其次，提出了一种基于工件材料的砂轮结合剂自锐性评价方法。采用致密多孔金属结合剂砂轮进行磨削实验，证实了多孔金属结合剂的自锐作用增强，磨削力减小。这表明金属多孔键在自锐化方面具有很高的潜力。

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 Journal of Manufacturing Science and Technology Engineering-Industrial and Manufacturing Engineering

CiteScore

9.10

自引率

6.20%

发文量

166

审稿时长

63 days

期刊介绍： The CIRP Journal of Manufacturing Science and Technology (CIRP-JMST) publishes fundamental papers on manufacturing processes, production equipment and automation, product design, manufacturing systems and production organisations up to the level of the production networks, including all the related technical, human and economic factors. Preference is given to contributions describing research results whose feasibility has been demonstrated either in a laboratory or in the industrial praxis. Case studies and review papers on specific issues in manufacturing science and technology are equally encouraged.