An approach to quantify the trends in productivity of lathe machines. | [Mehran University Research Journal of Engineering and Technology • 1992]

Author(s):

1. Rashid Anwar Akhtar: Al-Ghazi Tractors, Karachi, Pakistan

2. Faizullah Abbasi: Institute of Technology, Mehran University of Engineering & Technology, Jamshoro, Pakistan

3. Abu Baker Memon: Mechanical Engineering Department, Mehran University of Engineering Technology, Jamshoro, Pakistan

Abstract:

A survey of specifications of lathe machines was carried out over a period of twenty years (1956-1976). The variation in spindle speed and horsepower of different models of lathes marketed by Various manufacturers was reviewed. The Lathes were classified by the diameter of its swing, into two categories i/e 15" (380 mm) and those over 15" diameter swing. Spindle speeds and horsepowers for each year in the above category was averaged out and a regression analysis was conducted. It was then observed that for lathes up until 15" swing the annual increase in spindly speed and horsepower is 83. 42 rpm and 0. 42 respectively whereas for lathes over 15" swing the corresponding increase is 15. 90 rpm and 2. 34 respectively.

Page(s): 31-37

DOI: DOI not available

Published: Journal: Mehran University Research Journal of Engineering and Technology, Volume: 11, Issue: 1, Year: 1992

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