STUDY OF THE DRILLING PROCESS USED IN THE HOLE-DRILLING METHOD THROUGH THRUST FORCE MEASUREMENT AND TOOL WEAR ANALYSIS

2015 ◽  
Author(s):  
Rodrigo Blödorn ◽  
Mariana Tiemi Tamura ◽  
Rodrigo Alberto Henke ◽  
Matias Roberto Viotti ◽  
Armando Albertazzi Gonçalves Jr. ◽  
...  
Keyword(s):  
Tool Wear ◽  
Thrust Force ◽  
Force Measurement ◽  
Hole Drilling ◽  
Drilling Process ◽  
Hole Drilling Method ◽  
Wear Analysis ◽  
Drilling Method

Application of EDM Hole-Drilling Method to the Measurement of Residual Stress in Tool and Carbon Steels

2006 ◽  
Vol 128 (3) ◽  
pp. 468-475 ◽  
Author(s):  
Hwa-Teng Lee ◽  
Joachim Mayer ◽  
Fu-Chuan Hsu ◽  
Werner P. Rehbach ◽  
Thomas Weirich ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Residual Stress ◽  
Tool Steel ◽  
White Layer ◽  
Cold Work ◽  
Carbon Steels ◽  
Hole Drilling ◽  
Drilling Process ◽  
Hole Drilling Method ◽  
Drilling Method

This study adopts the application of the electrodischarge machining (EDM) hole-drilling method to the measurement of residual stress in AISI D2 cold work tool steel, AISI H13 hot work tool steel, and AISI 1045 medium carbon steel. A calibration procedure based on the thermal conductivity of the material is conducted to compensate for the additional compressive stress induced in the workpiece by the EDM hole-drilling operation. Since the formation of this white layer influences the magnitude of the induced stress, the scanning electron microscopy, transmission electron microscopy, and nanoindentation techniques are used to examine the microstructure and hardness of the white layer resolidified on the EDMed surface. The experimental results reveal that combination of the hole-drilling strain-gage method (ASTM standard E837) with an EDM drilling process provides the effective means of determining the residual stress in materials with high hardness and good wear resistance.

Measurements of residual stresses in a welded orthotropic steel deck by the hole-drilling method considering stress biaxiality

2021 ◽  
Vol 230 ◽  
pp. 111690
Author(s):  
Yadong Li ◽  
Jun Wu ◽  
Bin Qiang ◽  
Siting Zhou ◽  
Weiqin Liu ◽  
...  
Keyword(s):  
Residual Stresses ◽  
Hole Drilling ◽  
Orthotropic Steel Deck ◽  
Hole Drilling Method ◽  
Drilling Method ◽  
Steel Deck

Fuzzy Logic in Hole Drilling of Composites

1994 ◽  
Author(s):  
Aditya Thadani ◽  
Athamaram H. Soni
Keyword(s):  
Fuzzy Logic ◽  
Fuzzy Logic Controller ◽  
Thrust Force ◽  
Cutting Speed ◽  
Research Data ◽  
Theoretical Research ◽  
Hole Drilling ◽  
Tool Geometry ◽  
Drilling Process ◽  
And Control

Abstract Experimental and theoretical research data was utilized in building a Fuzzy Logic Controller model applied to simulate the drilling process of composite materials. The objective is to have a better understanding and control of delamination of composites during the drilling process and at the same time to improve the hole finish by controlling fraying and splintering. By controlling the main issues in the drilling process such as feed rate, cutting speed, thrust force, and torque generated in addition to the tool geometry, it is possible to optimize the drilling process avoiding the conventionally encountered problems.

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