A study of the cutting modes in the grooving of tungsten carbide

Liu, K.; Li, X. P.; Rahman, Mustafizur; Liu, X. D.

doi:10.1007/s00170-003-1565-6

Cited by 37 publications

(10 citation statements)

References 12 publications

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“…Shaw [29] proposed a material removal mechanism that heavy extrusion happened ahead of a large edge radius tool and Komanduri [30] proposed a mechanism like in grinding to cut using tools with a large negative rake angle. The cutting modes were studied through grooving tests on an inclined plane using a solid cutter [31]. As shown in Fig.…”

Section: Ductile Mode Cutting Mechanismmentioning

confidence: 99%

A review on ductile mode cutting of brittle materials

2018

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Brittle materials have been widely employed for industrial applications due to their excellent mechanical, optical, physical and chemical properties. But obtaining smooth and damage-free surface on brittle materials by traditional machining methods like grinding, lapping and polishing is very costly and extremely time consuming. Ductile mode cutting is a very promising way to achieve high quality and crack-free surfaces of brittle materials. Thus the study of ductile mode cutting of brittle materials has been attracting more and more efforts. This paper provides an overview of ductile mode cutting of brittle materials including ductile nature and plasticity of brittle materials, cutting mechanism, cutting characteristics, molecular dynamic simulation, critical undeformed chip thickness, brittle-ductile transition, subsurface damage, as well as a detailed discussion of ductile mode cutting enhancement. It is believed that ductile mode cutting of brittle materials could be achieved when both crack-free and no subsurface damage are obtained simultaneously.

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Section: Ductile Mode Cutting Mechanismmentioning

confidence: 99%

A review on ductile mode cutting of brittle materials

2018

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“…Liu et al (2001) studied the ductile cutting of tungsten carbide (WC) and demonstrated a transition from ductile mode to brittle mode as the undeformed chip thickness was increased. Liu et al (2004) also investigated the different cutting modes for grooving a tungsten carbide workpiece. Yan et al (2004) used calcium fluoride (CaF 2 ) as their workpiece material to demonstrate ductile cutting in order to produce a nanometric surface finish.…”

Section: Introductionmentioning

confidence: 99%

Predictive modeling of transition undeformed chip thickness in ductile-regime micro-machining of single crystal brittle materials

Venkatachalam

Liang

2009

Journal of Materials Processing Technology

108

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“…5a was f ab =0.929. The average value of the material removal ratio in grooving without ultrasonic vibration assistance, f ab , was 0.938 [16], as shown in Table 2, which indicated that the grooving process at the transition section A-A was almost in an ideal-cutting mode. That is, tungsten carbide could be machined in ductile mode when the depth of cut was less than 4.761 lm even though without ultrasonic vibration assistance.…”

Section: Work Materials Removal Ratiomentioning

confidence: 88%

“…5a. The mean critical depth of cut of the eight machined grooves was 4.761 lm [2,16]. That is, during the grooving process without ultrasonic vibration assistance, the cutting mode transited from ductile to brittle as the depth of cut exceeded the critical value of 4.761 lm, which is smaller then the radius (5.8 lm) of the tool cutting edge.…”

Section: Critical Depth Of Cutmentioning

confidence: 94%

Study of ductile mode cutting in grooving of tungsten carbide with and without ultrasonic vibration assistance

Liu

Rahman

et al. 2004

Int J Adv Manuf Technol

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In this study, ductile mode chip formation in conventional cutting and ultrasonic vibration assisted cutting of tungsten carbide workpiece material has been investigated through experimental grooving tests using CBN tools on a CNC lathe. The experimental results show that as the depth of cut was increased there was a transition from ductile mode to brittle mode chip formation in grooving both with and without ultrasonic vibration assistance. However, the critical value of the depth of cut for ductile mode cutting with ultrasonic vibration assistance was much larger than that without ultrasonic vibration assistance. The ratio of the volume of removed material to the volume of the machined groove, f ab , was used to identify the ductile mode and brittle mode of chip formation in the grooving tests, in which f ab <1 indicates ductile mode chip formation and f ab >1 indicates brittle mode chip formation. For the same radius of tool cutting edge, the value of f ab at the ductile-brittle transition region either with or without ultrasonic vibration was less than 1. However, the f ab value with ultrasonic vibration assistance was close to 1. The experimental results demonstrate that ultrasonic vibration assisted cutting can be used to improve the ductile mode cutting performance of tungsten carbide work material.

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A study of the cutting modes in the grooving of tungsten carbide

Abstract: In this paper, the cutting modes for grooving a tungsten carbide work material are investigated and presented. The grooving tests were carried out on an inclined workpiece surface using a solid CBN tool on a CNC lathe.

Cited by 37 publications

References 12 publications

A review on ductile mode cutting of brittle materials

A review on ductile mode cutting of brittle materials

Predictive modeling of transition undeformed chip thickness in ductile-regime micro-machining of single crystal brittle materials

Study of ductile mode cutting in grooving of tungsten carbide with and without ultrasonic vibration assistance

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