Different group's lathe project WS09

Different group's lathe project WS09 - Summary 1 Table of...

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Unformatted text preview: Summary 1 Table of Contents: Introduction ..p. 3 Objectives .......p. 4 Experimental Set-Up .....p. 5 Experimental Procedure ..p. 6 Experimental Data ..............................................................................................p. 7 Results and Discussion ........................................................................................p. 8 Conclusions .........................................................................................................p. 9 References p. 10 Appendix ..p. 11 2 Introduction Machining is a process in which material in the form of chips is removed from a workpiece. During machining, large forces are applied between a cutting tool and a specimen. As a result of these forces, many vibrations are created which affects the roughness of the surface being machined. Surface roughness, or finish, is the result of two independent effects; ideal and natural. Ideal surface roughness is what would be expected if irregularities were ignored. Natural surface roughness takes into account these irregularities, including inaccuracies in the machine tool movement, built-up edge formation, and chatter. There are many other factors that affect the surface roughness. These include the cutting geometry, the relative displacement between the tool and the workpiece, and the workpiece material properties. During this lab, different machines and measuring instruments were used to determine the surface roughness and cutting forces. Material was removed from a workpiece and at different speeds the surface roughness was measured for each speed. 3 Objectives In this lab, a comparison of the relative magnitudes of the ideal and actual surface roughness in a turning operation will be presented. To obtain necessary data, the surface roughness will be examined as a function of cutting speed, feed rate, and tool radius. The quality of surface finish and characteristics of the chips formed during various turning operations will be inspected. Data will be presented in graphical form and compared to ideal surface roughness for each particular case. The chip thickness ratio will also be examined in our calculations....
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This note was uploaded on 06/29/2011 for the course MAE 4500 taught by Professor El-gizawy during the Spring '06 term at Missouri (Mizzou).

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Different group's lathe project WS09 - Summary 1 Table of...

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