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RISS 인기검색어
- 검색키워드
- 저자 : Ibrahim Deiab (검색결과 2 건)
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Power Consumption and Tool Wear Assessment when Machining Titanium Alloys
Salman Pervaiz,Ibrahim Deiab,Basil Darras 한국정밀공학회 2013 International Journal of Precision Engineering and Vol.14 No.6
Titanium alloys are of interest for aerospace industries due to their high strength to weight ratio, outstanding corrosion and erosion properties and ability to operate at higher temperature. They are classified as difficult to cut materials because of their low thermal conductivity, high chemical reactivity and high strength at elevated temperature. The machinability rating of titanium alloys is low compared to other materials from many aspects. This study focuses on studying the cutting tool wear and power consumption when machining Titanium alloys under different cutting conditions. Design of experiments was used to develop a test matrix that cover the range of cutting conditions recommended for machining titanium alloys. Cutting forces, power consumption, tool wear and surface roughness were measured and analyzed. Tool wear mechanisms were also studied using scanning electron microscopy.
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Tool Wear Patterns When Turning of Titanium Alloy Using Sustainable Lubrication Strategies
Syed Waqar Raza,Ibrahim Deiab,Salman Pervaiz 한국정밀공학회 2014 International Journal of Precision Engineering and Vol. No.
A key area of research in sustainable machining is the search for environmentally benign cooling strategies. Vegetable oils have oftenbeen proposed as sustainable alternative to the conventional synthetic emulsion coolants. Techniques like dry and cryogenicmachining, MQL and MQCL have also been proposed. The current study investigates the effect of six different strategies on the flanktool wear during turning of titanium Ti-6Al-4v using uncoated carbide tool at two levels of speed and feed. The mechanisms of toolwear are discussed. The use of rapeseed vegetable oil in MQL and MQCL configuration turns out to be an overall sustainablealternative at low feed and speed. Thus confirming the promise predicted in the use of vegetable oil as a lubricant for machining. At high speed and feed, cryogenic machining is more suitable for sustainable machining of Titanium.
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