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S. Ilangovan ¹, A. Shanmugasundaram ¹, Sanjivi Arul ¹

Affiliations
1 Department of Mechanical Engineering, Amrita School of Engineering Coimbatore, Amrita VishwaVidyapeetham, Amrita University, Coimbatore, IN

Abstract

Dry sliding wear performance of aluminium alloy (AA 6063) was studied by varying applied normal load, sliding velocity and varying specimen temperatures from 50 to 150 °C. The results signify that the wear increases as the load increases from 10 to 20 N, while it decreases when the sliding velocity of the specimen increases from 1 to 2 m/s at room temperature. As the temperature of the specimen increases, the wear rate increases marginally at initial stage and then increases rapidly for a constant load and velocity. The specific wear was found to be decreased when load and sliding velocity were increased. However, in the case of varying specimen temperature condition, particularly at elevated temperature of the specimen, the specific wear showed an increasing trend. Coefficient of friction (COF) was nearly stable to both load and velocity, but it is marginally vary when temperature of the specimen increases from 50 to 100 °C and it decreases rapidly from 100 to 150 °C.

Keywords

AA 6063 Alloy, Coefficient of Friction, Pin-on-Disc, Specific Wear Rate, Wear Rate, Wear Resistance.

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S. Ilangovan ¹

Affiliations
1 Dept. of Mechanical Engg., Amrita School of Engineering, Ettimadai, Coimbatore, IN

Abstract

Green Productivity (GP) is a strategy for enhancing productivity and environmental performance for overall socio-economic development (Fig.1). It is the application of GP methodology comprising the appropriate techniques, technologies and management system to produce environmentally compatible goods and services. GP can be applied In manufacturing, service, agriculture and community. As GP focuses on productivity improvement and environmental protection, the central element of the GP methodology is the examination and re-evaluation of both production processes and products to reduce their environmental impacts and highlight ways to improve productivity and product quality. Implementation of these options leads on to another cycle of review and so promotes continuous improvement.

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S. Ilangovan ¹, N. Saravanan ¹

Affiliations
1 Department of Mechanical Engineering, Amrita Vishwa Vidyapeetham (Deemed University), Amrita Institute of Technology, Coimbatore-641 105, IN

Abstract

In the past, man in his quest for better standard and quality of life has allowed all other consideration to take a back seat and this accelerated the process of environmental degradation and began to threaten the earth's delicate ecological balance through which life on this planet survives. All manufacturing activities necessarily generate some form of waste. The manufacturing process does not consist o f 100 percent of conversion o f material and energy inputs into usable final products; some portion of the material and energy inputs inevitably ends up as wastes. When the waste generated exceeds the maximum assimilative capacity of the environment it becomes pollution. This paper focuses on LEAN productions, which aims at elimination of wastes there by reducing the environmental degradation.

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S. Ilangovan ¹, B. Viswanath ²

Affiliations
1 Mechanical Engineering, Amrita Institute of Technology and Science, Ettimadai, Coimbatore-641105, IN
2 Mechanical Engineering, Sri Krishna College of Engg. & Technology, Kuniamuthur, Coimbatore-641008, IN

Abstract

With global competition picking up for supply of discrete products, shorter product life cycles, frequent design changes, quick delivery schedules, quality demands of customers and low costs. High Speed Machining (hereafter called HSM) plays a major role as one of the time compression techniques in manufacturing.
Various papers have been published in the area of HSM to cater to the demanding needs of manufacturers of dies and moulds. An attempt has been made to present yet another innovative paper on the current challenges and trends In HSM of dies and moulds for the benefit of toolmakers and engineers, academicians and the engineering community at large. This paper introduces HSM technique for the novice, highlights the need for HSM, the benefits of HSM and its limitations, the application areas, the production equipment, the spindle, the CMC controls, the drive system, the programming requirements, tool path generation, cutting tools, tool holders and tool holder systems, fixturing, cutting data requirements, chatter and shock control, out- of- cut time study, metal removal fluids, product requirements, die/mould manufacturing through HSM technique and safety aspects.

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