Study on YAG laser-aided Dressing of Electroplated CBN Quill

电镀CBN套筒YAG激光辅助修整的研究

• 批准号: 06650124
• 负责人: TAMAKI Junichi
• 金额: $ 1.41万
• 依托单位: Kitami Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1994
• 资助国家: 日本
• 起止时间: 1994 至 1995
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-06650124/
• 关键词: Electroplated CBN quill; Mounted grinding wheel; YAG laser; Topography; Grinding performance; Truing; cBN電着クイル; ダイヤモンド電着クイル; ツル-イング; 研削仕上面粗さ; 磁石表面トポグラフィ; 切れ刃密度; レーザビーム近接量; 砥粒突出し量

In this project, "Laser beam-aided truing (LBT)" is proposed as a means of profiling the electroplated super abrasive (CBN and diamond) quills accurately without inducing warping between the truer and the grinding wheel. A Nd-YAG laser was irradiated along the tangential direction of the quill working surface in order to restrict the irradiation target only to the super abrasive grits. In the experiments, laser proximity to the quill working surface was used as a parameter to control the truing effect. The quill topography after laser irradiation was evaluated by measuring the quill profile, density of cutting points and grit proprusions by stylus method, and microstructures of the grits were observed with SEM before and after the laser irradiation. Bulk temperature rise of the quill during the laser irradiation was also monitored by means of radiation thermometer. Grinding performance of the quill after LBT was evaluated by the normal grinding force and the finished surface roughness obtained from internal plunge grinding using CNC lathe. The results are summarized as follows.(1) A pulsed YAG laser beam in Q-switched mode causes small cracks to propagate finally to be cleft in case of CBN,and graphitization followed by oxidation in case of diamond. The laser beam in continuous wave mode has dressing and/or truing effect on neither of CBN and diamond grits.(2) The tangential-mode LBT using a pulsed YAG laser in Q-switched mode has an ability to align the cutting points on the desired quill profile.(3) The topography characteristics can be controlled by changing the laser beam position in the quill radial direction.(4) The super abrasive quill applied LBT under an appropriate condition gives a little higher grinding force, however, the finished surface roughness is better and more stable as compared with the quill without laser treatment.

在该项目中，提出了“激光束辅助修整（LBT）”作为一种精确仿形电镀超级磨料（CBN 和金刚石）套筒的方法，而不会引起修整器和砂轮之间的翘曲。 Nd-YAG 激光沿主轴工作表面的切线方向照射，以将照射目标限制为仅超级磨粒。在实验中，激光与套筒工作表面的接近度被用作控制修整效果的参数。通过触针法测量主轴轮廓、切割点和砂粒突起的密度来评估激光照射后的主轴形貌，并用SEM观察激光照射前后砂粒的微观结构。还通过辐射温度计监测激光照射期间套筒的整体温升。 LBT后套筒的磨削性能通过法向磨削力和使用数控车床进行内切入磨削获得的成品表面粗糙度进行评价。结果总结如下：(1)调Q模式的脉冲YAG激光束在CBN中引起小裂纹扩展并最终形成裂口，在金刚石中引起石墨化然后氧化。连续波模式的激光束对 CBN 和金刚石磨粒均没有修整和/或修整效果。(2) 使用调Q 模式的脉冲 YAG 激光器的切向模式 LBT 能够将切割点对准在 CBN 和金刚石磨粒上。 (3) 可以通过改变激光束在套筒径向上的位置来控制形貌特征。(4) 超磨料套筒在适当的条件下应用LBT，磨削力稍高，但成品与未经激光处理的套筒相比，表面粗糙度更好、更稳定。

项目成果

田牧純一: "電着cBNクイルのYAGレーザツル-イング" 砥粒加工学会誌. 40-2. (1996)

Junichi Tamaki：“YAG 激光加工电沉积 cBN 套筒”，磨料加工协会杂志 40-2。

Jun'ichi Tamaki: "Nd : YAG laser-aided Truing of Electroplated CBN Quill" J.of the Society of Grinding Engineers. Vol.40, No.2. 81-86 (1996)

Junichi Tamaki：“Nd：YAG 激光辅助电镀 CBN 套筒修整”磨削工程师协会杂志。

田牧純一: "電着CBNクイルのYAGレーザツル-イング" 砥粒加工学会誌. 40-2. 81-86 (1996)

Junichi Tamaki：“YAG 激光加工电沉积 CBN 套筒”，磨料加工学会杂志 40-2（1996 年）。

Jun′chi Tamaki: "YAG Laser-aided Truing of Electroplated Superabrasive Quill" Trends and Innovations in Precision Manufacturing Technologies. 206-209 (1995)

Jun′chi Tamaki：“YAG 激光辅助电镀超级磨料套筒的修整”精密制造技术的趋势和创新 206-209 (1995)。