Solid diamond micro-grinding tools: From innovative design and fabrication to preliminary performance evaluation in Ti–6Al–4V
Solid diamond micro-grinding tools: From innovative design and fabrication to preliminary performance evaluation in Ti–6Al–4V
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DOI：
10.1016/j.ijmachtools.2012.03.003
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发表时间：
2012-08
影响因子：
14
通讯作者：
P. Butler-Smith;D. Axinte;M. Daine
中科院分区：
文献类型：
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作者：
P. Butler-Smith;D. Axinte;M. Daine
为了解决金刚石磨料几何特性的差异及其在传统金刚石工具表面的典型随机分布所带来的局限性，成功开发了一种新型能量束烧蚀方法，该方法能够生成具有相同尺寸、形状、晶体取向和间距的类磨料微特征阵列，从而形成固体金刚石结构。将分度旋转工作台整合到ND:YAG调q脉冲激光器中，用于烧蚀工作，使利用厚膜CVD金刚石生产创新的精密旋转微磨削工具成为可能。采用精密四轴微铣床对Ti-Al-4V加工的磨削性能进行了比较评估，结果表明，激光生成的金刚石微磨具的表面光洁度明显优于尺寸等效的传统金刚石电镀微磨具。除了证明由固体金刚石制成的磨削工具的坚固性外，测试还突出了切削元件布局的优势，通过在切削元件上均匀分配负载和有效的工件切屑处理，大大延长了刀具的使用寿命。
To address the limitations associated with variances in the geometric characteristics of diamond abrasives and their typical stochastic distribution on the surfaces of conventional diamond tools, a novel energy beam ablation method has been successfully developed enabling the generation of arrays of abrasive-like micro-features of identical size, shape, crystallographic orientation and spacing into solid diamond structures. The incorporation of an indexing rotary stage into an ND:YAG Q-switched pulse laser used for the ablation work has enabled the production of innovative precision rotary micro-grinding tools utilising thick film CVD diamond. Comparative grinding performance assessments employing a precision 4-axis micro-machine for the machining of Ti–Al–4V have shown that the laser generated diamond micro-grinding tools produce significantly superior surface finishes to the dimensionally equivalently conventional diamond electroplated micro-grinding tools. In addition to demonstrating the robustness of grinding tools produced from solid diamond, the tests have highlighted the advantages of the layout of cutting elements which significantly extended the operating life of the tool through the even distribution of load across the cutting elements and efficient workpiece chip disposal.