Study on creep feed grinding with CBN wheels. Characteristics of wheel wear.

Ichida, Yoshio; Kishi, Kozo; Suyama, Yuji; Okubo, Junichiro

doi:10.2493/jjspe.55.1468

Cited by 9 publications

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“…Moreover, the size of this micro fracture is much smaller than that in grinding with the cBN-B wheel. In order to clarify such a microscopic behavior of cutting edge wear, sequential changes of the cutting edge tip have been observed using a replica-SEM method (2) . A typical example of these SEM observation results is shown in Fig.12.…”

Section: Journal Of Advanced Mechanical Design Systems and Manufactmentioning

confidence: 99%

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Profile Grinding of High-Speed Steel using Ultrafine-Crystalline cBN Wheels

Ichida

2008

JAMDSM

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This paper deals with the grinding characteristics of newly developed ultrafinecrystalline cBN (cBN-U) abrasive grains in creep feed profile grinding of high-speed steels. Experiments for producing a V-shaped groove on a flat surface in one pass by creep feed grinding have been carried out using new polycrystalline cBN-U and representative conventional cBN (cBN-B) abrasive grains. When grinding with the cBN-U wheel, both radial wear and profile wear are less, and hence the grinding ratio is around 4 times higher than that with conventional cBN-B wheel. Grinding force in grinding with the cBN-U wheel is reduced by 5~15 % compared with that in grinding with the cBN-B wheel. The cBN-U abrasive grain is suitable for application with a high dimensional accuracy in creep feed profile grinding for high-speed steel, because it gives less profile wear, and hence better form retention of the wheel, than conventional cBN abrasive grain.

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Section: Journal Of Advanced Mechanical Design Systems and Manufactmentioning

confidence: 99%

“…Cubic boron nitride (cBN) grinding wheels are becoming widely used for the machining of various engineering materials, such as steel, cast iron and superalloys (1), (2) .…”

Section: Introductionmentioning

confidence: 99%

Profile Grinding of High-Speed Steel using Ultrafine-Crystalline cBN Wheels

Ichida

2008

JAMDSM

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“…Grinding force components were calculated by assuming that the average resultant grinding force acts at a middle point of the contact arc between the wheel and the workpiece (2) . Figure 11 shows the effects of grit type on the changes of grinding forces and specific grinding energy with increasing stock removal V w .…”

Section: Grinding Force and Specific Grinding Energymentioning

confidence: 99%

“…One of their main advantages, when compared with aluminum oxide wheels, is their much reduced wear rates, with grinding ratio of several thousand being commonly achieved (1), (2) . Recently, as the high-level grinding systems such as grinding center and ultrahigh-speed grinding machine and so on are improved, various demands for the higher performance of cBN wheels are increasing.…”

Section: Introductionmentioning

confidence: 99%

Profile Grinding of Superalloys with Ultrafine-Crystalline cBN Wheels

Ichida

Sato

Morimoto

et al. 2006

JSME Int. J., Ser. C

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This paper deals with the grinding characteristics of newly developed polycrystalline cBN (cBN-U) abrasives in creep feed profile grinding of nickel-based superalloys. Experiments for producing a V-shaped groove on a flat surface in one pass by creep feed grinding have been carried out using the new polycrystalline cBN-U and representative conventional cBN (cBN-B) grits. When grinding with cBN-U abrasives, both radial wear and profile wear are less, and hence the grinding ratio is around 10 times higher than that with the conventional cBN-B abrasives. Grinding forces in grinding with cBN-U abrasives are reduced by 20-30% compared with those in Grinding with cBN-B abrasives. The cBN-U abrasive is suitable for the applications with a high dimensional accuracy in creep feed profile grinding for nickelbased superalloys, because it gives less profile wear, and hence better form retention, than conventional cBN abrasive.

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“…Therefore, many studies on the relationship between the wear behavior and the self-sharpening of the grain cutting edges have been carried out (Yoshikawa, 1960;Tsuwa, 1961;Ichida et al, 1989Ichida et al, , 1995Malkin, 1989;Show, 1996). However, it is very difficult to evaluate this relation quantitatively because of the complexity in wear mechanism and the irregularity in shape and distribution of the grain cutting edges (Webster & Tricard, 2004).…”

Section: Introductionmentioning

confidence: 99%

Study on creep feed grinding with CBN wheels. Characteristics of wheel wear.

Cited by 9 publications

References 0 publications

Profile Grinding of High-Speed Steel using Ultrafine-Crystalline cBN Wheels

Profile Grinding of High-Speed Steel using Ultrafine-Crystalline cBN Wheels

Profile Grinding of Superalloys with Ultrafine-Crystalline cBN Wheels

Fractal Analysis of Micro Self-Sharpening Phenomenon in Grinding with Cubic Boron Nitride (cBN) Wheels

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