Chip Formation in Machining Particle-Reinforced Metal Matrix Composites

Hung, N.P.; Yeo, Song Huat; Lee, K. K.; Ng, Kennard Jun Hao

doi:10.1080/10426919808935221

Cited by 50 publications

(18 citation statements)

References 11 publications

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“…But the lower strength ( Fig. 6(a) and (b)) of MMC during machining may be a result of cracks generated due to presence of particles in the shear planes and tool-chip interface [10,30,31].…”

Section: Article In Pressmentioning

confidence: 97%

“…During deformation of the MMC, stress concentrations and local deformations are experienced due to presence of reinforced particles [10,11]. As MMC experiences high strain while passing through the primary and secondary shear zones, some particles are debonded initiating cracks and work hardening the matrix material [10,30,31,43]. This makes chips brittle and easy to fracture, resulting in the formation of short chips.…”

Section: Chip Shapementioning

confidence: 98%

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Machining of metal matrix composites: Effect of ceramic particles on residual stress, surface roughness and chip formation

Pramanik

Zhang

Arsecularatne

2008

International Journal of Machine Tools and Manufacture

221

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a b s t r a c tMachining forces, chip formation, surface integrity and shear and friction angles are important factors to understand the machinability of metal matrix composites (MMCs). However, because of the complexity of the reinforcement mechanisms of the ceramic particles, a fair assessment of the machinability of MMCs is still a difficult issue. This paper investigates experimentally the effects of reinforcement particles on the machining of MMCs. The major findings are: (1) the surface residual stresses on the machined MMC are compressive; (2) the surface roughness is controlled by feed;(3) particle pull-out influences the roughness when feed is low; (4) particles facilitate chip breaking and affect the generation of residual stresses; and (5) the shear and friction angles depend significantly on feed but are almost independent of speed. These results reveal the roles of the reinforcement particles on the machinability of MMCs and provide a useful guide for a better control of their machining processes.

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Section: Article In Pressmentioning

confidence: 97%

Section: Chip Shapementioning

confidence: 98%

Machining of metal matrix composites: Effect of ceramic particles on residual stress, surface roughness and chip formation

Pramanik

Zhang

Arsecularatne

2008

International Journal of Machine Tools and Manufacture

221

View full text Add to dashboard Cite

show abstract

“…Most of the work regarding metal matrix composites has focused on aluminum MMCs, [7][8][9][10][11][12][13][14]. Only a limited amount of research has been reported in the open literature dealing with machining of magnesium based MMCs [15,16].…”

Section: Introductionmentioning

confidence: 99%

Facing SiCp/Mg metal matrix composites with carbide tools

Pedersen

Ramulu

2006

Journal of Materials Processing Technology

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“…Increasing size of the particulates an obstacle for occurring plastic deformation in composite material, thereby giving rise to accelerated stress gradients around the particulates. Occurred defects resulted in high surface roughness values [18]. For the HSS drills taken as the soft tool material, the best surface finish result (1.70 lm) was obtained on specimens with as-received condition.…”

Section: Resultsmentioning

confidence: 99%