منابع مشابه
Welding Gun Inclination Detection and Curved Fillet Weld Joint Tracking
It is important to adjust the welding gun's inclination during automatic curved-joint tracking of arc welding. In this paper, a novel method is proposed to detect the deviation and inclination of the welding gun based on the arc currents acquired by a high-speed rotational arc sensor. It uses a least-squares method to fit the arc currents to a plane in three dimensions. The deviation and inclin...
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The understanding of the hardenability is important in steel development with respect to weldability of steels as well as to the design of quenched and tempered steels. The common way to judge if steel is suitability to welding is the use of a carbon equivalent, which reflects the alloy content to the hardenability of the heat affected zone (HAZ). Most common of these equivalents is the IIW car...
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Welding time and joint preparation are among the most important factors dominating the cost and productivity of welding. If the desired penetration of the weld pool can be achieved in a single pass, the welding speed will be the major factor that determines the welding time. When the thickness of the part increases, grooves may have to be machined so that the desired penetration may still be ob...
متن کاملAn Adaptive Sampling Approach to 3D Reconstruction of Weld Joint
We present an adaptive sampling approach to 3D reconstruction of the welding joint using the point cloud that is generated by a laser sensor. We start with a randomized strategy to approximate the surface of the volume of interest through selection of a number of pivotal candidates. Furthermore, we introduce three proposal distributions over the neighborhood of each of these pivots to adaptivel...
متن کاملEuclidean-space measures of robotic joint failures
James D. English and Anthony A. Maciejewski Purdue University 1285 Electrical Engineering Building West Lafayette, Indiana 47907-1285 Abstract Robotic joint failures are directly characterized and measured in joint space. A locking failure, for example, is one for which a joint cannot move, and it gives an error equal to the desired value minus the locked value. This article extends the joint-s...
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ژورنال
عنوان ژورنال: Sadhana
سال: 1995
ISSN: 0256-2499,0973-7677
DOI: 10.1007/bf02747291