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Micromachining has become a necessary manufacturing process. Micro-milling tool and its evolution play a vital role in the development of micromachining. This study optimizes the grinding process of polycrystalline diamond (PCD) compact for manufacturing PCD micro-tool. The optimization is conducted by using four parameters, …
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Summary This chapter presents an overview of the micro grinding technologies developed for hard and brittle materials. It summarizes the principle and methodologies associated with the grinding pro...
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The diamond grinding method is almost the best choice to obtain a high-quality surface of ... used metal-bond cup-shaped diamond grinding tools to obtain a high-quality structure of silicon carbide with the surface roughness of 9.92–17.22 nm. They also observed that the low machining induced processing damage caused by microstructural defects ...
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This paper mainly focuses on the fabrication process of diamond ultra-small micro-grinding tool, on which a novel fabrication method is presented and applied. …
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Generally, arc-envelope grinding proposed by Tsunemoto et al. (1996) is a high-efficiency method for the fabrication of complex optical surfaces. During the envelope grinding process, the arc-shaped diamond grinding wheel trued by dressing wheel was used to envelope workpiece and generate the microstructural surfaces.
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In this paper, nickel phosphorous diamond (Ni-P-D) composite plating is introduced as a new method to fabricate a micro diamond wheel with a diameter of φ450 μm. In the fabrication process, the steel substrate (SKD-11) is first ground to a ball end shape with a radius of 200 μm. Nickel phosphorous (Ni-P) and micro diamond particles …
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Diamond micro mills are very suitable to process the nickel-based superalloy GH4169 because of its high stiffness and edge sharpness. The geometric parameters of micro-end-mills have a significant effect on the milling process. In order to determine the optimal tool geometric parameters, a micro-end-mill was designed and used to simulate …
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A compound processing method of pulsed nanosecond laser, picosecond laser and precision grinding is proposed to fabricate large aspect ratio PCD micro-milling tools. The influence of picosecond laser parameters on the cutting edge is discussed. The optimal PCD tool with diameter of 0.5 mm, length-diameter ratio of 3 and a blunt radius of 3.5 …
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This study presents a novel, practical and low-cost approach that integrates micro-Electron Discharge Machining (micro-EDM) with precision composite electroforming to develop a micro-grinding tool. The developed micro-tool is utilized …
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In this work, the structured CVD diamond micro-grinding tool is proven to have better machining accuracy and wear resistance through the surface roughness and burr size after machining. According to the measured force signal results, the structured CVD diamond micro-grinding tool can reduce the axial force by 20% and the radial …
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The wear of micro-grinding tool is a crucial factor that affects the processing efficiency, quality, and dimensional accuracy of micro-structure workpieces [1]. The tool wear …
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2.2 Machinability of materials during single-point diamond turning. Research has been performed to investigate machinability of different materials during SPDT technology [20,21,22,23]; a wide range of metals and metallic alloys can be machined with SPDT to achieve the required smoothness and accuracy.This includes aluminum …
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A novel miniature diamond grinding tool usable for the precise micro-grinding of miniature parts is presented. A hybrid process that combines 'micro-EDM' …
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Surface metrology instrumentation has made great progress with the development of new principle ... a Mould grinding machine with integrated probing unit and b schematic of compensation grinding ... Gan SW, Wong SY, Hong GS, Rahman M, Yao J (2012) Optimized tool path generation for fast tool servo diamond turning of micro …
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A technique was developed to fabricate an extremely thin diamond micro wheel with the micro co-deposition method and the tool was used to implement microgrooves on optical glass in situ (Fig. 19).
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With respect to the truing and sharpening of diamond abrasive grinding tools, traditional machining methods are briefly described, and new dressing methods, such as the laser dressing method, are described in detail. It is pointed out that laser dressing of diamond abrasive tools is a green processing method with high efficiency and no …
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And the effects of micro-structure parameters including widths, inclination angles, structuring ratios and types on the grinding performance of micro-structured CVD diamond wheels were investigated quantitatively. This study provides a quantitative and effective method for the design of CVD diamond grinding wheels and their surface …
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This paper intends to compare six commonly used tools for micro-hole drilling of SiC f /SiC CMC assisted by ultrasonic vibration: carbide drill, PCD drill, electroplated diamond abrasive tool, grinding drill, coated grinding drill, and PDC tool. First, the material removal process is theoretically analyzed, and the difference in tool …
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In order to improve the tool life and micro-hole machining quality, the H-shaped chisel edge micro-drill (HCE-MD) was developed in this paper. The HCE-MD was characterized by the inner edge formed through the chisel edge thinning. In the micro-drilling process, the inner edge can perform positive rake cutting, so the machining area …
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a) A micro-cutting tool of 3 mm in diameter made by EDM and the fabricated (b) micro-hole and (c) micro-slot [51] +6 Process strategy for wear compensation in micro-EDM milling [53]
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First, the metal substrate is cut down to 50μm in diameter using WEDG, then, the micro-diamonds with 0–2μm grain is "plated" on the surface of the substrate by …
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Development of a superabrasive grinding wheel with defined grain structure using kinematic simulation. ... Solid diamond micro-grinding tools: from innovative design and fabrication to preliminary performance evaluation in Ti-6Al-4V ... of compensation experiments suggested that the MACLA surface had a form accuracy of 1.93 μ m after …
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Dutch researchers [3] successfully manufactured a dresser to produce different concave-surface diamond-form grinding wheels using forming tools. Brinksmeier et al. [4] used the EDM dressing method to roughen a diamond wheel, which was then finished using mechanical compensation dressing (such as the turning dressing or roller …
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Since cemented carbide has been used as a micro-lens array mold, its processing method and micro-tool is one of the research priorities. In order to achieve high-quality milling of cemented carbide micro-lens array, the design and fabrication of the 0.5-mm diameter polycrystalline diamond (PCD) micro ball-end mill were studied. Based on …
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Chen et al. (2009) [45] developed a multilayer micro diamond grinding tool with an outside diameter of 100–200 μm by the compound process of micro-EDM and …
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Small ball-end fine diamond grinding pins dressed by on-machine electrical discharge method are promising tools for ultra-precision grinding complex structural components of hard and brittle ...
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Compared with plane surface grinding and single point grinding, the wheel wear characteristic of arc-envelope grinding is more complex and the wear compensation is more complicated to realize. Besides, great studies of developing compensation technologies have been made to reduce profile errors involved in arc-envelope machining.
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Development of a micro diamond grinding tool by compound process @article{Chen2009DevelopmentOA, title={Development of a micro diamond grinding …
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Micro grinding is an emerging technology for producing structured surfaces on hard and brittle materials.A micro pencil grinding tool (MPGT) consists of a layer of superabrasive grits, bonded to a solid cylindrical surface. Randomly distributed and geometrically undefined grits interact with the workpiece surface at random positions.
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This paper reports the latest research progress on micro-grooving glass ceramic using laser structured diamond grinding wheels. A nanosecond pulse laser is firstly integrated into an ultra-precision machine tool and used for the in-line conditioning of super abrasive grinding wheels, i.e., truing, dressing, and profiling/texturing.
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