Author(s): Costa, S. ; Capela, Paulina Araújo ; Ribeiro, J. ; Pereira, M. ; Soares, Delfim
Date: 2025
Persistent ID: https://hdl.handle.net/1822/94846
Origin: RepositóriUM - Universidade do Minho
Subject(s): Simulation; Wear; Grinding wheels; Cooling
Effective control of heat and debris removal during grinding operations are crucial for process optimization. Various approaches are being studied to distribute adequately and efficiently the grinding fluid in the contact zone. This study evaluates an innovative methodology using grinding wheels with an internal network of “cooling channels” designed to deliver the grinding fluid directly from the wheel's core toward the contact zone. The goal is to supply coolant directly to the grinding area, to reduce the air barrier effect, and to regulate the heat generation. Grinding tests were conducted on AISI 1045 steel, using a vitrified abrasive wheel with a three-dimensional structure featuring 32 channels (Ø1.5 mm) arranged in two layers (2x16). The workpiece was 15mm in length, with a thermocouple inserted at the midpoint and 1 mm below the surface to monitor the operation temperature. Different depths of cut were tested at four different flow rates. The rotation speed was set to 5000rpm, and distilled water was used as the cutting/cooling fluid.
