High-speed high-efficient grinding of CMCs with structured grinding wheels
Paper i proceeding, 2018

Ceramic Matrix Composites (CMCs) are counted as new materials which their implantation is limited due to their high machining costs as a result of high grinding forces and tool wear. To overcome mentioned problems, modified grinding wheels, one macro-structured by segmenting and another micro-structured (half lasered structured and half non-structured) were used in this study. The grinding tests were carried out at different material removal rates and cutting speeds. The grinding forces, generated surface roughness, and induced residual stress by means of grinding with the structured and non-structured wheels were compared. Reduction in the static cutting edges via wheel structuring resulted in a better performance of the grinding wheel through the reduction of rubbing and ploughing regimes. The grinding forces were respectively 30% and 20% lower in the case of segmented wheel and laser-structured wheel in comparison with the conventional grinding. In addition, the tensile residual stress can be reduced as a negative output of the grinding process via structuring. Moreover, a high-speed high-efficient grinding of CMCs without presence of surface damage was achieved by optimizing the process parameters. The material removal rate can be elevated without changing the grinding forces with application of the structured wheel.

High speed high efficiency grinding

Segmented wheel

Laser-structure

CMCs

Författare

Bahman Azarhoushang

Hochschule Furtwangen (HFU)

Mohammadali Kadivar

Chalmers, Industri- och materialvetenskap, Material och tillverkning

Hochschule Furtwangen (HFU)

Robert Bösinger

Hochschule Furtwangen (HFU)

Sergey Shamray

Hochschule Furtwangen (HFU)

Ali Zahedi

Hochschule Furtwangen (HFU)

Amir Daneshi

Hochschule Furtwangen (HFU)

ISAAT 2018 - 21st International Symposium on Advances in Abrasive Technology

21st International Symposium on Advances in Abrasive Technology, ISAAT 2018
Toronto, Canada,

Ämneskategorier

Tribologi

Annan materialteknik

Farkostteknik

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2021-01-18