Chip Curl, Chip Breaking and Chip Control of the Difficult-to-Cut Materials

Zhang, Y.Z.; Peklenik, J.

doi:10.1016/s0007-8506(07)61299-2

Cited by 36 publications

(18 citation statements)

References 2 publications

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“…It is evident from the literature review the two important criteria for chip breaking are given by [10,11]. According to Nakayama, [10], the chip breaks when the strain on chip increases beyond some critical value given by…”

Section: Criterion For Chip Breakingmentioning

confidence: 99%

“…Zang and Peklenik, [11] have analyzed the process of chip breaking in 'difficult-to-cut' materials and proposed a criterion based on their mechanical properties as…”

Section: Criterion For Chip Breakingmentioning

confidence: 99%

“…It was also suggested that the mechanical properties of chip material could be related to the mechanical properties Table 3 Tensile test data and properties of chip material of the parent workpiece material by certain proportions [11].…”

Section: Criterion For Chip Breakingmentioning

confidence: 99%

“…(5) is evaluated based on the proportions proposed by Zang [11] for the evaluation of mechanical properties of chip material from the properties of work material, refer Table 3. The procedure of evaluation is mentioned below; 1.…”

Section: E6aluation and Measurement Of Model Parametersmentioning

confidence: 99%

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Analysis of chip breaking during orthogonal machining of Al/SiCp composites

Joshi

Ramakrishnan

1999

Journal of Materials Processing Technology

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With the advent of large number of composite materials, a systematic study of machining characteristics of these new materials is necessary for their rapid adoption in the actual engineering applications. This paper is an attempt to understand the machining characteristics of Al/SiCp composite material, which is the most widely used and projected to have large application in the near future. A detailed study of fundamental aspects of chip formation during orthogonal machining is carried out. From the visual observation of the physical form of chips, a systematic chip breaking pattern was observed. Also, the chip breaking phenomenon was related to the mechanical properties of composites by a chip breaking criterion. An understanding of chip curling and breaking can be very helpful in designing cutting tools with constrained chip flow space (like drills, taps, broaches, etc.).

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Section: Criterion For Chip Breakingmentioning

confidence: 99%

“…Zang and Peklenik, [11] have analyzed the process of chip breaking in 'difficult-to-cut' materials and proposed a criterion based on their mechanical properties as…”

Section: Criterion For Chip Breakingmentioning

confidence: 99%

Section: Criterion For Chip Breakingmentioning

confidence: 99%

Section: E6aluation and Measurement Of Model Parametersmentioning

confidence: 99%

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Analysis of chip breaking during orthogonal machining of Al/SiCp composites

Joshi

Ramakrishnan

1999

Journal of Materials Processing Technology

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“…In general, chip curl is enhanced by chip breaker (Zhang and Peklenik, 1980), built-up edge (Cook et al, 1963), and/or secondary shear zone (Nakayama et al, 1984) in orthogonal cutting. In our previous research, a chip breaker was not applied at the tap tool edge, and no built-up edges were observed at the tool edge surface after tapping tests (Saito et al, 2016b).…”

Section: Introductionmentioning

confidence: 99%

Effect of coefficient of friction at the sliding zone of chip-tool interface on chip curl diameter and secondary shear zone thickness during tapping process

Saito

Yamaguchi

Itagaki

et al. 2017

JAMDSM

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During the tapping process, chip snarling at high cutting speeds is a major obstacle in the improvement of machining efficiency. A cut tap tool coated with nickel-phosphorus (Ni-P)/abrasive particle composite film reduced the chip curl diameter and prevented chip snarling under high cutting speed conditions (50 m/min). In this study, the local coefficient of friction at the sliding zone of the chip-tool interface was estimated on the basis of the sticking-sliding friction model and using the cutting torque and thrust force measured during the tapping process. In addition, the effects of the local coefficient of friction at the sliding zone on chip curl diameter and secondary shear zone thickness were analyzed to investigate the mechanism of preventing chip snarling when using tapping tools coated with composite film. Tapping tests were conducted using four tapping tools that were steam treated, TiCN film coated, Ni-P/cBN film coated, or Ni-P/SiC film coated. The workpiece material was a rolled structure steel. The cutting speeds were 10, 30, and 50 m/min. The results demonstrated that chip curl diameter decreased with an increase in the local coefficient of friction at the sliding zone. The local coefficients of friction for tapping tools coated with composite films (1.51-1.91) were higher than those for tapping tools with conventional surface treatments (1.35-1.58). The secondary shear zone thickness also increased with an increase in the local coefficient of friction at the sliding zone. These results indicated that the tapping tool coated with Ni-P/abrasive particle composite film provided a high local coefficient of friction at the sliding zone, which increased the secondary shear zone thickness and reduced the chip curl diameter.

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A Study on Chip Curling and Breaking

Liu

Zhang

et al. 1992

Proceedings of the Twenty-Ninth International Matador Conference

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Chip Curl, Chip Breaking and Chip Control of the Difficult-to-Cut Materials

Cited by 36 publications

References 2 publications

Analysis of chip breaking during orthogonal machining of Al/SiCp composites

Analysis of chip breaking during orthogonal machining of Al/SiCp composites

Effect of coefficient of friction at the sliding zone of chip-tool interface on chip curl diameter and secondary shear zone thickness during tapping process

A Study on Chip Curling and Breaking

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