Real Time Diagnosis Charts of Thread Quality in Tapping Operations

Alain Gil del Val; Justino Fernández; Pedro María Diéguez; Miguel Arizmendi; Fernando Veiga

doi:10.4028/www.scientific.net/MSF.797.71

Paper Titles

Cutting Forces Prediction in the Dry Slotting of Aluminium Stacks
p.47

Evaluation of Cutting Tools Secondary Adhesion Wear Using 3D Optical Topography Techniques — Application to Dry Turning of Al-Cu Aerospace Alloy
p.53

Experimental Prediction Model for Roughness in the Turning of UNS A97075 Alloys
p.59

Influence of the Dry Turning Parameters on the Ultimate Tensile Strength (UTS) of UNS A92024 Samples
p.65

Real Time Diagnosis Charts of Thread Quality in Tapping Operations
p.71

Relationship of Pocket Geometry and Tool Path Strategy with 2 1/2-D Milling Parameters: Machining Time, Cutting Forces and Surface Roughness
p.78

Topography Prediction on Grinding of Emerging Aeronautical TiAl Intermetallic Alloys
p.84

An Upper Bound Approach of Ring Compression Test Solutions
p.93

Characterization of Metal Heating Elements for Resistance Welding of Thermoplastic Matrix Composites (PEEK)
p.99

HomeMaterials Science ForumMaterials Science Forum Vol. 797Real Time Diagnosis Charts of Thread Quality in...

Real Time Diagnosis Charts of Thread Quality in Tapping Operations

Abstract:

Tapping by cutting is one of the most common operations in manufacturing. It consists of cutting internal threads on the wall of a previously drilled hole by means of a tool called a tap that has cutting edges on its chamfered periphery. When tap wear is slight the process and geometry are usually in control and correct, respectively. However, when tap wear level is high the geometry is not correct and the process is out of control. This is an unacceptable industrial cost. The aim of this paper consists on an industrial monitoring application to data coming from the current/torque signal of the tap spindle for assessing thread quality. It operates in real time and indicates when the tap wear is so critical that, if the process were continued, it would result in unacceptable screw threads. Then the system shows a red light so that the operator could replace the worn-out tap. The system would be very cost-effective since the tapping process could be run without any operator intervention.

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Periodical:

Materials Science Forum (Volume 797)

Pages:

71-77

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.797.71

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Online since:

June 2014

Authors:

Alain Gil del Val*, Justino Fernández, Pedro María Diéguez, Miguel Arizmendi, Fernando Veiga

Keywords:

Diagnosis, Monitoring, PCA, Quality, SPC, Tapping

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References

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