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Evaluation of bio-based metal working fluid on cutting performance and chip formation processes / Shahandzir Bin Baharom

By:

Shahandzir Baharom [author.]

Material type: Text

text

Media type:

unmediated

Carrier type:

volume

ISBN:

THE0010077 (Local)

Subject(s):

Dissertation note: Thesis (Master of Science) -- Universiti Malaysia Pahang – 2025 Abstract: Metalworking fluids (MWFs) are crucial for cooling and lubricating metal workpieces, enhancing quality by reducing heat and friction. However, conventional MWFs, usually mineral oil-based, cause environmental pollution and health risks due to poor biodegradability and high recycling costs. Researchers are exploring biodegradable alternatives like vegetable based MWFs. Lubricant performance is evaluated using methods such as chip formation analysis with a Quick Stop Device (QSD), which freezes chips to assess their properties without alteration. Oblique cutting tests compare lubricants for machinability performance. Experimental investigation using Bintangor laut oil and synthetic ester, among others, during turning stainless steel AISI 316L, demonstrates promising results. Minimum Quantity Lubrication (MQL) emerges as a better alternative to flood coolant systems. Orthogonal cutting analysis reveals that synthetic ester (SE) achieves the best performance in terms of cutting force (> 20%), chip thickness (> 16%), and tool-chip contact length (> 26%) compared to dry cutting. However, Refined Bleached and Deodorized Palm Olein (RBDPO) exhibits competitive performance. In oblique cutting tests, bio-based lubricants demonstrate acceptable values for cutting forces, chip thickness, and tool wear. Despite its good cutting performance, RBDPO produces high roughness (> 60%) compared to SE on the workpiece surfaces. The results highlight the potential of Crude Jatropha Oil (CJO) as a promising alternative lubricant, with opportunities for further enhancement through chemical modifications like esterification and additive enrichment to improve tribological and physical properties.

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Holdings ( 2 )
Title notes ( 4 )

Holdings
Item type	Current library	Call number	Status	Date due	Barcode
Thesis	UMPLIB PEKAN	FTKPM .S53 2025 r Thesis (Browse shelf(Opens below))	Not for loan		T000003543
Thesis	UMPLIB PEKAN	CD13750 (Browse shelf(Opens below))	Final Processing		T000003544

Faculty of Manufacturing and Mechatronic Engineering Technology

Thesis (Master of Science) -- Universiti Malaysia Pahang – 2025

Includes bibliographical references

Metalworking fluids (MWFs) are crucial for cooling and lubricating metal workpieces, enhancing quality by reducing heat and friction. However, conventional MWFs, usually mineral oil-based, cause environmental pollution and health risks due to poor biodegradability and high recycling costs. Researchers are exploring biodegradable alternatives like vegetable based MWFs. Lubricant performance is evaluated using methods such as chip formation analysis with a Quick Stop Device (QSD), which freezes chips to assess their properties without alteration. Oblique cutting tests compare lubricants for machinability performance. Experimental investigation using Bintangor laut oil and synthetic ester, among others, during turning stainless steel AISI 316L, demonstrates promising results. Minimum Quantity Lubrication (MQL) emerges as a better alternative to flood coolant systems. Orthogonal cutting analysis reveals that synthetic ester (SE) achieves the best performance in terms of cutting force (> 20%), chip thickness (> 16%), and tool-chip contact length (> 26%) compared to dry cutting. However, Refined Bleached and Deodorized Palm Olein (RBDPO) exhibits competitive performance. In oblique cutting tests, bio-based lubricants demonstrate acceptable values for cutting forces, chip thickness, and tool wear. Despite its good cutting performance, RBDPO produces high roughness (> 60%) compared to SE on the workpiece surfaces. The results highlight the potential of Crude Jatropha Oil (CJO) as a promising alternative lubricant, with opportunities for further enhancement through chemical modifications like esterification and additive enrichment to improve tribological and physical properties.