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RISInterval Model Based Robust Control of Weld Joint Penetration
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Weld penetration sensing and control with a weld-face sensor are among the most relevant research issues in automated welding. Previous studies showed that the geometry of the weld pool contains ...
Real-Time Sensing of Sag Geometry During GTA Welding
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Seam tracking and weld penetration control are two fundamental issues in automated welding. Although the seam tracking technique has matured, the latter still remains a unique unsolved problem. ...
Real-Time Image Processing for Monitoring of Free Weld Pool Surface
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The arc weld pool is always deformed by plasma jet. In a previous study, a novel sensing mechanism was proposed to sense the free weld pool surface. The specular reflection of pulsed laser ...
Internal Stress Development and Fatigue Performance of Normal and Crumb Rubber Concrete
Publisher: American Society of Civil Engineers
Abstract: This paper focuses on early-age internal stress evolvement under restraining conditions and the fatigue behavior of ordinary concrete and crumb rubber concrete. The internal strain development in ordinary concrete and crumb ...
A New Method for the Optimization of a Vibration Isolation System
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Formerly the optimization of the passive vibration isolator is mainly founded on the nonlinear programming algorithms. The methods are iterative in nature and time-consuming. In this paper a ...
Cutting Force Dynamics as a Tool for Surface Profile Monitoring in AWJ
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Abrasive waterjet cut surface is characterized using static and dynamic characterization techniques. A novel method of auto regressive moving average model identification called model distance ...
Sensing and Control of Weld Pool Geometry for Automated GTA Welding
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Weld pool geometry is a crucial factor in determining welding quality, especially in the case of sheet welding. Its feedback control should be a fundamental requirement for automated welding. ...
Precision Sensing of Arc Length in GTAW Based on Arc Light Spectrum
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This work aims to improve the measurement accuracy of arc length using the arc light at a particular wavelength during gas tungsten arc welding (GTAW) with argon shield. To this end, the ...
Dynamic Analysis and Identification of Gas Tungsten Arc Welding Process for Weld Penetration Control
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this study, gas tungsten arc welding is analyzed and modeled as a 2-input (welding current and arc length) 2-output (weld depression and width) multivariable process. Experiments under a ...
Dynamic Estimation of Full Penetration Using Geometry of Adjacent Weld Pools
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Control of weld penetration is currently one of the most important and crucial research issues in the area of welding. The weld pool can provide accurate and instantaneous information about ...