PENGARUH SUDUT POTONG PAHAT TERHADAP GAYA PEMOTONGAN PADA PROSES BUBUT BEBERAPA MATERIAL DENGAN PAHAT HSS

Abstract: This research studied the effect of the tool wedge angle on  the cutting force  at  some  materials.  Test  was  performed  byforce-measuring  instrument (dynamometer)  in the turning  machinewith HSS tools, the variation of wedge angle  was  60o,  65o,  70o,  and  75o.  The  tests  used  three  kinds  of  materials, namely, AISI 1015 steel, 6061 aluminum, and nylon. Force measurement were performed  on tangential and axial direction. Cutting force measurement  was gotten with used Advantech data acquisitionand adamview software.  Analysis was performed to determine the effect of the tool wedge angle on cutting force and  chip was produced in three types of material.
The  result  of  the  research  showed    that  the  bigger  tool  wedge anglemake  the  cutting  force  become  bigger  in  three  types  of  material.  The greatest  cutting  force  for  AISI  1015  steel,  6061  alumunium  and  nylon  are 529.9,  250.5  and  163.8  N,  which  all  happened  on    tangential    force  wedge angle 75o. It was caused bigger tool wedge angle make contact area tool with workpiece  become  bigger,  than  chip  shear  strength  become  bigger.  Bigger tool  wedge  angle  produced  thicker  chip  and  easier  to  broken,  especially  for hard material like AISI 1015 steel.
Keywords: Cutting force, Wedge angle, Dynamometer, Chip
Penulis: Ivan Norma Susila, Zainal Arifin, Didik Djoko Susilo
Kode Jurnal: jptmesindd130143

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