Publication: Comparative study of cutting insert materials for efficient machining of grpp: mechanical properties & surface roughness evaluation
| datacite.subject.fos | oecd::Engineering and technology::Mechanical engineering | |
| dc.contributor.author | Chew, Tung Lick | |
| dc.date.accessioned | 2026-01-14T08:26:40Z | |
| dc.date.available | 2026-01-14T08:26:40Z | |
| dc.date.issued | 2023-06-23 | |
| dc.description.abstract | In the recent history, numerous mechanical coatings had been designed and implemented onto modern cutting tools for various reasons. In addition to improving the tool life of the cutting tool by reducing wear of the surface of the cutting tool, such coatings also bear the effect of improving the performance of cutting tool by enhancing their surface hardness, reducing coefficient of friction, and decreasing heat absorption. Tetrahedral amorphous carbon, also known as TaC is a form of diamond-like carbon (DLC) that has been used as mechanical coating layer to reduce the effect of frictional force on various tools, reducing wear in the long run. However, there is no research done on the possibility of TaC-coated cutting tool as an alternative to the currently used cutting tools in terms of performance and cost. Poly-crystalline diamond (PCD) has always been the go-to of manufacturing companies as cutting tool material in machining glass-reinforced polypropylene (GRPP) material. This end goal of this study is to determine whether TaC-coated cutting insert is a plausible alternative to PCD cutting insert in machining of GRPP material in terms of performance, tool life, and cost. Nano indentation tests on the cutting inserts were conducted and the results shown that PCD insert has higher hardness (16.228 GPa) where the hardness of TaC-coated insert is 9.803 GPa. The plastic work and elastic work of the TaC-coated insert (145.233 nJ and 57.995 nJ) are lower than PCD insert (162.154 nJ and 71.615 nJ). However, the workpiece surface roughness produced by PCD insert is lower than TaC-coated insert, at 0.6514 μm, compared to 0.8594 μm. all three inserts can be viable choices in machining GRPP material. Selecting the suitable and appropriate cutting insert depend on machining priorities. PCD insert is a great choice if high precision and superior surface finish are required despite its high cost. TaC-coated insert reaches balance between performance and cost, whereby uncoated insert is budget-friendly and may be suitable for applications where surface finish and precision are not primary concerns. | |
| dc.identifier.uri | https://erepo.usm.my/handle/123456789/23439 | |
| dc.language.iso | en | |
| dc.title | Comparative study of cutting insert materials for efficient machining of grpp: mechanical properties & surface roughness evaluation | |
| dc.type | Resource Types::text::report::technical report | |
| dspace.entity.type | Publication | |
| oairecerif.author.affiliation | Universiti Sains Malaysia |