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Browsing Industrial and Manufacturing Systems Engineering Faculty Research and Publications by Title

Browsing Industrial and Manufacturing Systems Engineering Faculty Research and Publications by Title

Now showing items 11-30 of 36

Grinding of silicon wafers: a review from historical perspectives

Pei, Zhijian J.; Fisher, Graham R.; Liu, J. (2008)

The majority of semiconductor devices are built on silicon wafers. Manufacturing of high quality silicon wafers involves several machining processes including grinding. This review paper discusses historical perspectives ...
Grinding wheels for manufacturing of silicon wafers: a literature review

Liu, J. H.; Pei, Zhijian J.; Fisher, Graham R. (2007)

Grinding is an important process for manufacturing of silicon wafers. The demand for silicon wafers with better quality and lower price presents tremendous challenges for the grinding wheels used in the silicon wafer ...
A grinding-based manufacturing method for silicon wafers: decomposition analysis of wafer surfaces

Lu, W. K.; Pei, Zhijian J.; Fisher, Graham R. (2007)

It is difficult for the lapping-based manufacturing method currently used to manufacture the majority of silicon wafers to meet the ever-increasing demand for flatter wafers at lower costs. A grinding-based manufacturing ...
Mechanical drilling processes for titanium alloys: a literature review

Zhang, Pengfei; Churi, N. J.; Pei, Zhijian J.; Treadwell, C. (2008)

Titanium and its alloys (Ti) are attractive for many applications due to their superior properties. However, they are regarded as hard-to-machine materials. Drilling is an important machining process since it is involved ...
Near-infrared femtosecond laser machining initiated by ultraviolet multiphoton ionization

Yu, Xiaoming; Bian, Qiumei; Zhao, B.; Chang, Z.; Corkum, P. B.; Lei, Shuting (2013)

We report on the experimental study of microstructures fabricated on the surface of fused silica by two femtosecond laser pulses, a tightly focused 266 nm beam followed by a loosely focused 800 nm beam. By setting the ...
Periodic and uniform nanogratings formed on cemented carbide by femtosecond laser scanning

Lian, Yunsong; Deng, Jianxin; Xing, Youqiang; Lei, Shuting; Yu, Xiaoming (2013)

Periodic and uniform nanogratings are fabricated by femtosecond laser scanning on cemented carbide. Specifically, three experiments are designed to study the influence of single pulse energy, scanning speed, and scanning ...
Rotary ultrasonic machining of carbon fiber reinforced plastic composites: using cutting fluid versus cold air as coolant

Cong, W. L.; Feng, Q.; Pei, Zhijian J.; Deines, T. W.; Treadwell, C. (2012)

Drilling is involved in many applications of carbon fiber reinforced plastic (CFRP) composites. Rotary ultrasonic machining (RUM) has been successfully employed to drill holes in CFRP using either cutting fluid or cold ...
Rotary ultrasonic machining of carbon fiber-reinforced polymer: feasibility study

Feng, Q.; Cong, W. L.; Pei, Zhijian J.; Ren, C. Z. (2012)

Carbon fiber-reinforced polymer (CFRP) has been widely used in aircraft components, automotive parts, and sporting goods. Hole machining is the most frequently employed operation of secondary machining for fiber-reinforced ...
Rotary ultrasonic machining of CFRP composites: a study on power consumption

Cong, W. L.; Pei, Zhijian J.; Deines, T. W.; Srivastava, Anil; Riley, L.; Treadwell, C. (2012)

Carbon fiber reinforced plastic (CFRP) composites are very difficult to machine. A large number of holes need to be drilled in CFRP for many applications. Therefore, so it is important to develop cost-effective drilling ...
Rotary ultrasonic machining of CFRP using cold air as coolant: feasible regions

Cong, W. L.; Pei, Zhijian J.; Deines, T. W.; Treadwell, C. (2011)

Carbon fiber reinforced plastic (CFRP) composites are in demand for a variety of applications due to their superior properties. Drilling is involved in many CFRP applications. Experiments have been successfully conducted ...
Rotary ultrasonic machining of CFRP/Ti stacks using variable feedrate

Cong, W. L.; Pei, Zhijian J.; Deines, Timothy W.; Liu, D. F.; Treadwell, C. (2013)

Rotary ultrasonic machining (RUM) has been successfully used to drill Ti (titanium and its alloy), CFRP, and CFRP/Ti stacks. In all studies on RUM reported in the literature, feedrate was fixed during each experimental ...
Rotary ultrasonic machining of CFRP: a comparison with twist drilling

Cong, W. L.; Pei, Zhijian J.; Feng, Q.; Deines, T. W.; Treadwell, C. (2012)

Drilling is involved in many applications of carbon fiber reinforced plastic (CFRP) composite. Twist drilling is widely used in industry. Rotary ultrasonic machining (RUM) has been successfully tested to drill holes in ...
Rotary ultrasonic machining of optical K9 glass using compressed air as coolant: a feasibility study

Zhang, Chenglong; Cong, Weilong; Feng, Pingfa; Pei, Zhijian (2014)

Optical K9 glass has been used in a variety of applications, including optics, electronics, thermodynamics, and fluidics. It has been regarded as a difficult-to-cut material because of its superior mechanical properties. ...
Rotary ultrasonic machining of titanium alloy: effects of machining variables

Churi, N. J.; Pei, Zhijian J.; Treadwell, C. (2006)

Titanium and its alloys are finding prime applications in industries due to their unique properties. However, high cost of machining is one of the limiting factors for their widespread use. Tremendous efforts are being ...
Simultaneous double side grinding of silicon wafers: a literature review

Li, Z. C.; Pei, Zhijian J.; Fisher, Graham R. (2006)

Silicon wafers are the most widely used substrates for fabricating integrated circuits (ICs). The quality of ICs depends directly on the quality of silicon wafers. A series of processes are required to manufacture high ...
Simultaneous double side grinding of silicon wafers: a review and analysis of experimental investigations

Qin, Na; Pei, Zhijian J.; Fisher, Graham R.; Liu, J. (2009)

Simultaneous double side grinding (SDSG) has become an important flattening process for manufacturing of 300 mm silicon wafers. However, the literature contains only a small number of papers on SDSG. In contrast, there are ...
Size reduction of poplar wood using a lathe for biofuel manufacturing: effects of biomass crystallinity on sugar yield

Zhang, Meng; Song, Xiaoxu; Pei, Zhijian; Deines, Timothy W.; Wang, Donghai (2014)

Poplar wood can be used as a feedstock for manufacturing cellulosic biofuel (ethanol) as an alternative to petroleum-based liquid transportation fuel. Producing biofuel from poplar wood involves reducing poplar wood into ...
Statistical process control for monitoring a diffusion process

Tsai, Tzong-Ru; Chang, Shing I; Chou, Shih-Hsiung; Chiang, Jyun-You; Sung, Wen-Yun (2014)

This study presents a new statistical process control (SPC) procedure for a process together with degradation and diffusion effects. One of such examples is the initial cool-down process of high-pressure hose production. ...
Statistical process control for monitoring nonlinear profiles: a six sigma project on curing process

Chang, Shing I.; Tsai, Tzong-Ru; Lin, Dennis K. J.; Chou, Shih-Hsiung; Lin, Yu-Siang (2012)

Curing duration and target temperature are the most critical process parameters for high- pressure hose products. The air temperature collected in the curing chamber is represented in the form of a profile. A proper ...
A study on laser-fiber coupling efficiency and ablation rate in femtosecond laser deep microdrilling

Shen, Xinwei; Bian, Qiumei; Chang, Zenghu; Lei, Shuting; Wu, Benxin (2012)

Laser microdrilling is a common micromachining operation in many industrial applications. This paper presents a new laser microdrilling technique in which a hollow-core fiber is employed to transmit femtosecond laser pulses ...

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