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Describes the use of welding robots for making bridge panels. The system uses a total of 14 sets of High Speed Rotating Arc welding robots and newly‐developed arc sensor techniques are used with both joint end and bead end sensors. A teaching‐less direct CADCAM system was developed to control the robots. The welding robot system is now in commercial operation with welding efficiencies that are twice those possible with conventional processes.

Whilst robots are of benefit in gas metal arc welding process parameters are the critical factors. Vernon Mangold of Kohol Systems discusses their influence on cell design.

The development of robotized welding is truly impressive and is today one of the major application areas for industrial robots. The first industrial robots were introduced in the early 1960s for material transfer and machine tending. Not long after that, robots were used for spot welding and in the early 1970s for arc welding as well. During the years, significant developments have taken place both concerning the robot equipment and the welding equipment to meet the different challenges within the application area. This paper describes the development and progress of robotization in welding over the years and also some projections and trends for the near future.

This paper outlines the range of robots available and in use in Britain for arc welding, and gives examples of typical current industrial applications. Work at the National Engeering Laboratories and the Welding Institute has the objective of increasing the range and ease of robot arc welding, and recent developments in this area are introduced.

This study aims to improve the welding quality and efficiency, and an algorithm should be designed to realize tracking space-curved fillet weld joints.

Fillet weld joints tracking based on the two wheels and the horizontal slider coordinated movement has been studied. The method of pattern recognition is used to identify the height deviation, and the analysis of the accuracy corresponding to recognizing height deviations has been researched. The proportional control algorithm is used to control the vertical and horizontal sliders movement, so fillet weld joints tracking in the height direction has been achieved. Based on wheels and vertical and horizontal sliders coordinated movement, the algorithm of space-curved fillet weld joints tracking has been researched.

Some experiments have been done, and experimental results show that the welding robot can track space-curved fillet weld joints with high accuracy and good reliability.

The welding robot can improve the welding quality and efficiency.

The welding robot can track fillet weld joints in ship panels, and it was shown that the welding robot could track space-curved fillet weld joints with high accuracy and good reliability.

The welding robot has many industrial and social applications.

There are various forms of fillet weld joints in the industry, and the fillet weld is curved in the space. Experimental results show that the welding robot can track space-curved fillet weld joints with good stability and high precision.

Aims to present general concepts and framework for increasing the flexibility in robotic arc welding with respect to use of sensors and small series production.

Presents a conceptual model with a framework that integrates existing tools and needed developments and research to increase the usefulness of sensors in robotic arc welding. The conceptual model is based on research within the field which covers supporting tools like robot simulation, sensor modelling and handling and optimization issues with respect to the robot task execution. A descriptive structure and concept is outlined to include welding procedure specifications (WPS) as a key module to provide an integrated and holistic control model of the robotic.

Finds that the outlined conceptual model and architecture supports an increased flexibility of sensor controlled robots for arc welding applications. The arguments are specifically made for small series and one‐off production.

The paper is limited to arc welding applications and the concept and arguments are made with small series and one‐off production in mind.

Increased use of sensors and robots in small series production.

Introduces a holistic approach for task level control of a robot which introduces a structured way for integrated and coordinated control of the arc welding task. The objective is to execute the welding task with maintained robustness with respect to predefined specifications (quality, productivity).

Initially, we reviewed the robot welding equipment in terms of its purpose: greatly improved arc welding quality and reliability, and stimulation of the arc welding market. We then discussed the arc welding package, with its advanced ability to perform work tasks. This equipment also results in a noticeable improvement in welding speed (4m/min). This is possible due to a welding power supply specially developed for robots and wire feeding equipment run by the servo drive so tasks that were previously not possible are now. In this article, we introduce the MOTOPAC‐WS100 (standard arc welding package), the MOTOPAC‐WH200 (high‐speed arc welding package), and the MOTOEYE‐LT, MOTOEYE‐LF (unique laser sensor tools), and the MOTOMAN‐ET (teach procedure support tool).

This paper describes the development of a variety of robot welding and grinding systems. Also discusses the benefits of running arc welding cables within the body of the robot and the use of a computer controlled welder. Also covers digitally controlled spot welding and communication with a supervisory computer. Finally, discusses de‐burring and the opportunities for further development in this area.

A combination of new machines and new companies to make them is signalling a switch in emphasis from spot welding to arc welding robots in readiness for the next wave of increased sales, though this does not mean spot welding robots are by any means dead.

Matsushita leads a number of companies coming into the robots business, while Yamaha installs over 100 arc welding robots, and international ventures increase.