TY - JOUR

T1 - Influence of metal working fluid on chip formation and mechanical loads in orthogonal cutting

AU - Denkena, Berend

AU - Krödel, Alexander

AU - Ellersiek, Lars

N1 - Funding Information: The authors appreciate the funding of this work within the Priority Program 2231 “Efficient cooling, lubrication and transportation – coupled mechanical and fluid-dynamical simulation methods for efficient production processes (FLUSIMPRO)” by the German Research Foundation (DFG) – project number 439904924.

PY - 2022/2

Y1 - 2022/2

N2 - Metal working fluids are used in machining processes of many hard-to-cut materials to increase tool life and productivity. Thereby, the metal working fluids act on the thermal and on the mechanical loads of the tool. The changing mechanical loads can mostly be attributed to the changing friction between rake face and chip and changes in the chip formation, e.g., the contact length between rake face and chip. However, analyzing those effects is challenging, since a detailed look at the chip formation process is prevented by the metal working fluid. In this paper, a novel planing test rig is presented, which enables high-speed recordings of the machining process and process force measurements while using metal working fluids. Experiments reveal that process forces are reduced with increasing pressure of the metal working fluid. However, the average friction coefficient only changes slightly, which indicates that the reduced process forces are mainly the result of reduced contact lengths between rake face and chip.

AB - Metal working fluids are used in machining processes of many hard-to-cut materials to increase tool life and productivity. Thereby, the metal working fluids act on the thermal and on the mechanical loads of the tool. The changing mechanical loads can mostly be attributed to the changing friction between rake face and chip and changes in the chip formation, e.g., the contact length between rake face and chip. However, analyzing those effects is challenging, since a detailed look at the chip formation process is prevented by the metal working fluid. In this paper, a novel planing test rig is presented, which enables high-speed recordings of the machining process and process force measurements while using metal working fluids. Experiments reveal that process forces are reduced with increasing pressure of the metal working fluid. However, the average friction coefficient only changes slightly, which indicates that the reduced process forces are mainly the result of reduced contact lengths between rake face and chip.

KW - Chip formation

KW - Friction

KW - Lubrication

KW - Metal working fluid

UR - http://www.scopus.com/inward/record.url?scp=85116792457&partnerID=8YFLogxK

U2 - 10.1007/s00170-021-08164-2

DO - 10.1007/s00170-021-08164-2

M3 - Article

AN - SCOPUS:85116792457

VL - 118

SP - 3005

EP - 3013

JO - International Journal of Advanced Manufacturing Technology

JF - International Journal of Advanced Manufacturing Technology

SN - 0268-3768

IS - 9-10

ER -