Laser Dressing of Metal Bonded Diamond Wheel

Hosokawa, Akira; Ueda, Tadao; Yunoki, Tomoya

doi:10.1016/s0007-8506(07)60428-4

Cited by 74 publications

(19 citation statements)

References 5 publications

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“…Furthermore, the Q-switched laser showed a lower heat accumulation on the wheel surface than continuous wave laser processing. Hosokawa [10] also used Nd:YAG laser radiation and reported successful dressing of metal bond wheels. By precise control of the laser parameters and wheel rotation speed, the appropriate grain protrusion height can be Dressing of Hybrid Bond CBN Wheels Using Short-Pulse Fiber Laser generated.…”

Section: Laser Dressing State Of the Artmentioning

confidence: 99%

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Dressing of Hybrid Bond CBN Wheels Using Short-Pulse Fiber Laser

Rabiey¹,

Walter²,

Kuster³

et al. 2012

SV-JME

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A systematic research analysis has been applied to study the effect of dressing parameters on grinding forces, work piece roughness and wheel wear of a hybrid bond CBN grinding wheel. This paper presents some of the results achieved by the comparison between a conventional SiC dressed wheel and a grinding wheel dressed by means of a short-pulse fiber laser. The results show high technological potential for the laser dressing method compared to conventional dressing. Lower grinding forces and specific energy, with relatively the same surface roughness and lower total grinding wear (wear by dressing plus wear by grinding) are the biggest advantages of the laser dressing method over the conventional method. However, the economic aspects of laser dressing (investment on laser source and associated add-ons) at the moment, cannot justify the integration of such systems on the grinding machine for all types of applications. The next challenge is optimization of the laser dressing process to increase the efficiency of the process and expand the possible applications both from a technical and commercial point of view.

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Section: Laser Dressing State Of the Artmentioning

confidence: 99%

“…3. (6) laser processing head, (7) assist gas inlet, (8) coaxial nozzle, (9) grinding wheel, (10) laser delivery fiber, (11) laser system, (12) PC and (13) CNC unit Fig. 3.…”

Section: Laser Dressingmentioning

confidence: 99%

Dressing of Hybrid Bond CBN Wheels Using Short-Pulse Fiber Laser

Rabiey¹,

Walter²,

Kuster³

et al. 2012

SV-JME

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“…Furthermore, numerous abrasive grains are not abraded, but pulled out of the wheel surface instead, owing to the large contact forces with the SiC wheel. The severe contact conditions could also induce thermal and mechanical damages to the grains and consequently lead to the deterioration of their performance while grinding [7]. These factors are major obstacles to the widespread application of metal, resin, and hybrid bonded superabrasive grinding tools.…”

Section: Introductionmentioning

confidence: 99%

Grinding efficiency and profile accuracy of diamond grinding wheels dressed with wire electrical discharge conditioning (WEDC)

Zahedi¹,

Khosravi²,

Azarhoushang³

2021

Int J Adv Manuf Technol

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Super abrasive diamond grinding wheels are the most promising tools for the precision machining of advanced ceramics and carbide materials. However, the efficiency of conventional conditioning of these tools is limited owing to high dressing tool wear, long process time, low form flexibility, and induced damage to the abrasive grains. Wire electrical discharge machining (WEDM) is an alternative method for conditioning of superabrasive grinding wheels with electrically conductive bonding materials. In this study, cylindrical plunge grinding of an alumina ceramic with a resin-bonded diamond grinding wheel is investigated. The assigned type of resin bond contains copper particles and is accordingly electrically conductive for wire electrical discharge conditioning (WEDC). Conventional (mechanical) and WEDC methods are used for generating the same profile on two similar diamond grinding wheels. As a result, the specific grinding energy was reduced up to 26% and 29% during rough and finish plunge grinding, respectively. Reduced specific grinding energy and forces, along with more effective grain protrusion and sharpness by using WEDC for profiling of grinding wheels, have contributed positively to the ground surface conditions despite the relatively rougher wheel surface topography in comparison to the conventional profiling. The more considerable reduction in the mean roughness depth (Rz) than in the arithmetical mean roughness value (Ra) (11% smaller Rz values in WEDC versus mechanical conditioning) verifies that the workpiece surface underwent less surface degradation in case of WEDC because of smaller grinding forces. Furthermore, the profile wear behavior of the workpiece ground with the WED conditioned grinding wheel was superior to the conventionally conditioned one.

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“…However, high precision was not reached due to evaporation of the resin and following loss of the diamond grains. Bronze bonded diamond tools were studied by Hosokawa et al (2006) and a sharpening process with a ms Q-switched laser investigated. They used an air jet nozzle to blow away the metallic binder before re-solidification and convection cooling, which leads to high ablation rates.…”

Section: Introductionmentioning

confidence: 99%

High-Precision Laser Conditioning of Diamond Grinding Wheels

Ackerl¹,

Warhanek²,

Gysel³

et al. 2019

Preprint

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A novel approach for machining of cylindrical hard materials and arbitrary shapes is presented. Diamond grinding tools with complex geometry are manufactured with picosecond orthogonal and quasi-tangential combined laser ablation. This rapid and flexible approach for small-scale production of master tools for industrial production trumps conventional approaches. Hitherto, the overall process time is faster compared to conventional technologies with the benefit of free standing diamond grains. A laser manufacturing chain achieving an ablation rate of 35mm3/min with a maximal geometric deviation of 3μm is presented. The meta-stable diamond structure persists and is assessed via Raman spectroscopy. The final grinding tools is sharpened by a radial laser process removing preferentially the metal-based binding material. This isolates the statistically distributed diamond grains from the binder. Hence, high-precision diamond grinding wheels with a mean error of smaller 1μm over the complete contour can be manufactured.

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Laser Dressing of Metal Bonded Diamond Wheel

Cited by 74 publications

References 5 publications

Dressing of Hybrid Bond CBN Wheels Using Short-Pulse Fiber Laser

Dressing of Hybrid Bond CBN Wheels Using Short-Pulse Fiber Laser

Grinding efficiency and profile accuracy of diamond grinding wheels dressed with wire electrical discharge conditioning (WEDC)

High-Precision Laser Conditioning of Diamond Grinding Wheels

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