##tihuan2##In the forming grinding of a cemented carbide micro-drill, edge burrs are generated. To explore the formation of the edge burrs, the grinding parameters, such as feed rate, grinding depth, wheel service time, and wheel rotation, are analyzed experimentally. Results show that the burrs on the micro-drill edge are caused by …
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##tihuan2##Micro hot embossing of thermoplastic polymers is a cost-effective replication technology to transfer microstructure patterns from a master mold onto a polymeric …
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##tihuan2##This paper proposes a model to predict the material removal mode in soda-lime glass micro-grinding. This model defines material removal process to three stages which conclude ductile type, ductile-brittle type and brittle type by the quantization of undeformed chip thickness h m . The model for computing undeformed chip thickness in …
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##tihuan2##Coverage includes abrasives and superabrasives, wheel design, dressing technology, machine accuracy and productivity, machine design, high-speed grinding technology, cost optimization, ultra ...
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##tihuan2##SiCp/Al composites contain fine reinforcing particles with high hardness and rigidity, which makes the processing more difficult. The surface roughness prediction model was established and the micro-grinding mechanism was revealed. A non-homogeneous finite element simulation model for the high-volume fraction SiCp/Al composites …
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##tihuan2##A higher ε value indicates that the inhibitory effect is better, whereas a small ε value indicates that the inhibitory effect is lower. (3) The unit energy grinding effect is used to characterize the energy utilization efficiency of the high-voltage electrical pulse pretreatment. The equation is as follows: β = A i − A 0 E. β - unit ...
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##tihuan2##In this paper, the primary factors affecting surface quality are studied and a theoretical model is developed for surface generation in grinding silicon carbide (SiC). The model takes into account the geometrical kinematics and tool micro-vibration in the grinding operation. The simulated roughness profiles agree reasonably well with …
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##tihuan2##1. Introduction. Micro-optics, especially glass MLA and optical grating, are widely required in optical communication, optical sensors and lighting displays due to their unique optical geometry [1, 2].Among the various advanced micro-fabrication techniques, such as plasma etching [3], lithography [4], laser ablation [5], micro-injection [6], micro …
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##tihuan2##Ultrasonic vibration-assisted micro end grinding (UAMEG) is a promising processing method for microparts made of hard and brittle materials. The surface quality of the workpiece in UAMEG is important, as it influences the performance of the finished part to a great extent. However, the surface finish is governed by many factors, and its …
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##tihuan2##Micro-grinding technology can meet the demand for complex structures and micro-characteristic, especially for hard and brittle materials with desired surface integrities (Pratap et al., 2016). Micro-grinding is widely used as an effective method for machining thin-walled parts, which have low stiffness and high removal rate.
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##tihuan2##The chapter focuses on the development of truing and dressing technologies for micro grinding wheels. It also deals with the error compensation method for the …
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##tihuan2##Industry hotspot. effect of iron mining on water quality; micro emboss effect with grinding technology; effect of the mill speed on cyclone efficiency Micro Motor Grinder Suppliers In Hyderabad micro emboss effect with grinding technology.
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##tihuan2##Selective laser melting (SLM) high-entropy alloy (HEA)-formed parts have certain gaps in dimensional accuracy and surface finish compared with traditional subtractive molding parts, which is the main problem of selective laser melting high-entropy alloy (SLM-HEA) at present. Three different HEAs were prepared using SLM …
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##tihuan2##Nickel-based single-crystal superalloy has no grain boundary, hence has excellent high-temperature mechanical properties and is the best option for the manufacturing of the blades of aero-engine and gas turbine. The removal mechanism of grinding traditional polycrystalline material is different from that of single-crystal …
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##tihuan2##A finite element model of single abrasive grinding was established to analyze the material removal during the grinding process and analyze the surface and subsurface defects of the material after grinding. Using the orthogonal test method to machine the surface of the workpiece with a grinding rod of 2 mm grinding head …
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##tihuan2##It has been proven that micro-geometry of abrasive grits can influence the maximum cutting depth, thereby strongly affecting the material removal mechanism in grinding of brittle materials. The influence of grit micro-geometry on subsurface integrity, however, is not yet fully understood. In this paper, we aim to understand how grit micro …
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##tihuan2##Through adding high-frequency micro vibration to conventional grinding technique, micro-nano vibration-assisted grinding can reduce grinding force, increase material removal rate and improve surface quality. Some hard and brittle materials, processed through ultrasonic vibration-assisted grinding, have been widely adopted in efficient and quality …
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##tihuan2##In order to improve the micro-grinding quality of 2.5D carbon fiber-reinforced silicon carbide ceramic matrix (2.5D Cf/SiC) composite materials, their characteristics under different grinding parameters were investigated in this study. Firstly, theoretical models for the undeformed chip thickness and micro-grinding force were …
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##tihuan2##Electrochemical grinding (ECG) at macrolevel and microlevel finds increasing use in medical device manufacturing industry. To enhance application of micro-ECG, a comprehensive study of the role electrolyte flow in the formation of hydroxide layer on a workpiece due to electrochemical dissolution, and its removal due to abrasion by a …
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##tihuan2##After a coat curing, micro-grinding experiment could be started. As a result, the glass could be removed by micro-grinding under a coat restraining effect. After the micro-grinding experiments, the resin coat, which finishes its fracture restraining task, could be removed by steeping in hot water for 10 min finally. Download: Download full …
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##tihuan2##Micro-grinding is a tool based mechanical micromachining process which is mostly applied to create and finish 3D micro-features on hard and brittle materials such as glass, silicon, alumina, etc. Miniature …
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##tihuan2##A grinding wheel with orderly-micro-grooves is a new type of structured grinding wheel for grinding narrow-deep slots. It can improve the carrying capacity of the coolant in the grinding zone effectively. The wear and evolution of grains directly determine the sharpness of the grinding wheel, and this affects the grinding performance in terms …
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##tihuan2##Micro embossing is an effective way to fabricate a polymethyl methacrylate (PMMA) specimen into micro-scale array structures with low cost and large volume production. A new method was proposed to fabricate a micro …
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##tihuan2##In the micro-grinding process, owing to the size effect, the effects of material microstructure on the grinding force are more significant through the variation of material flow stress. Currently, the variation of material flow stress resulting from the change of crystallographic orientation during the micro-grinding has not been well examined. In …
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##tihuan2##Perveen, A, San, WY & Rahman, M 2012, ' Fabrication of different geometry cutting tools and their effect on the vertical micro-grinding of BK7 glass ', International Journal of Advanced Manufacturing Technology, vol. 61, no. 1-4, pp. 101-115.
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##tihuan2##Rotary ultrasonic grinding machining (RUGM) is regarded as the most powerful machining method for engineering ceramic. However, there are micro-cracks on the machined surface inevitably for lower fracture roughness of material. As part of surface integrity, effective parameter and unified criterion are not proposed for micro-crack …
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##tihuan2##A comparison between non-embossed and embossed tissue papers was conducted to investigate the effect of this process, on industrial and laboratory-made structures, evaluated by mechanical and ...
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##tihuan2##The high-frequency tool-workpiece vibration in micro-grinding plays a pivotal role in influencing surface generation in micro-grinding. To overcome the problems coming with the process vibration, this paper presents the implementation and testing of an active vibration control platform that can be used to suppress the high-frequency relative …
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##tihuan2##The CVD diamond micro-grinding tool highly promising for micro-scale high accuracy machining. To improve the lubrication and chip removal performance in the grinding zone, a kind of micro-structured CVD diamond micro-grinding tool. Firstly, the commercial FEM software was adopted to analyze the effects of micro-structure …
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