Tool Grinding of Drills with various Diamond Grinding Wheels and Tungsten Carbide Materials

Description

The data was collected from 160 flute grinding processes during the machining of twist drills. The process was carried out on a Walter Vision 400 L with diamond abrasive grains in a hybrid bonded Q-Flute Evo 2 from Saint Gobain Diamantwerkzeuge GmbH. Various types of material from Tigra GmbH were used. In addition to the technology parameters, the currents of the machine drives, meassured surface roughness, and simulated data of the local engagement conditions are included.

Steps to reproduce

The process data (such as the drive currents) were recorded using the Servo Guide software from Fanuc, which is the supplier of the machine control system. The simulation data was generated with IFW CutS (version 2.7.0), which is a dexel-based material removal simulation developed by our institute. To measure the surface roughness, a confocal microscope of the confovis company was used to capture point clouds of the surface. Parameter extraction was performed using Digital Surf's MountainsMap software. The final extraction and summarization of all data was executed by Matlab software from MathWorks. The variable naming DoSet stands for the desired outside diameter and DcSet for the desired core diameter of the workpieces. The entries "f1" and "f2" in the variable names indicate that the parameter belongs to the first or second machined flute. The drive currents are specified with their axis directions as Ix, Iy and Iz. Is represents the spindle current and DTRQ is an adjusted version of the spindle current supplied by the machine control. It is calculated from Is adjusted for bearing friction. The measured core diameters are labeled DkAct2, DkAct21, DkAct40 and DkAct55, where the number indicates the distance of the measuring position from the tip of the workpiece.

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