PENGARUH PARAMETER PROSES PEMESINAN BUBUT TERHADAP KEKASARAN PERMUKAAN PADA MATERIAL BAJA TULANGAN BETON KS16

Abstract

The parameters of the lathe machining process greatly affects the quality of the surface roughness of
a product. The purpose of this study was to determine the effect of process parameters of machining lathe which
is the cycle (n), the motion eat (f), and the depth of cut (a) to the surface of the material to the rudeness
concrete reinforcing steel KS16. This research was conducted by differentiating parameter lathe machining
process and after the testing of surface roughness based on those parameters. Machining process is done by
memfariasikan round, motion eat, and the depth of cut of concrete reinforcing steel workpiece KS16 having a
diameter of 16 mm and is formed with a length of 100 mm. Then do the lathing process with a length of 70 mm.
Once it is done by using a surface roughness testing of surface roughness test equipment.The results showed that
the higher the engine rotation, motion eat, and the depth of the cut is done then the surface roughness values
obtained will be higher. For the lowest roughness values obtained at n = 185 rpm with f = 0.031 mm / rev with
Ra = 1.43 μm at a = 0.25 mm. For the highest roughness values at n = 910 rpm with f = 0.038 mm / rev with Ra
= 6.05 μm at a = 0.75 mm. The higher cutting forces obtained the roughness value generated would be even
greater.