Drawn arc aluminum stud welding for automotive applications

Ramasamy, S.

doi:10.1007/bf02711866

Cited by 20 publications

(7 citation statements)

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“…CNC automated stud welding systems have been widely used in automobiles (Ramasamy, 2002), shipbuilding (Fricke and Tchuindjang, 2013; LEE et al , 2009; Blevins, 2015) and construction, which greatly improved the welding efficiency. However, their flexibilities are poor, so robots are introduced in stud welding (Kovačevi and Streny, 1985).…”

Section: Introductionmentioning

confidence: 99%

Dual-robot stud welding system for membrane wall

Chen

2021

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Purpose The membrane wall is one of the most important components in the boiler industry and numerous studs are welded on its surface. The membrane wall welding still remains a sector intensive in the manual and arduous works. This paper aims to propose a dual-robot system to automatically weld studs on the membrane wall. Design/methodology/approach In this paper, the authors proposed a dual-robot stud welding system for membrane walls. First, the membrane wall is divided into several zones and the welding paths are planned. Then, the pose of the pipes is calculated based on the data measured by light section sensors. The planned paths are compensated by the pose. Finally, the robots weld studs based on the compensated paths. Findings The method effectively eliminates manufacturing errors and welding distortions. The system can weld straight type and L-type membrane walls with high efficiency, high quality and high accuracy. Originality/value The system can weld straight type and L-type membrane walls with high efficiency and high quality. Experiments were performed in a factory to demonstrate the practicability of the method. The dual-robot system with two welding machines has approximately twice the efficiency of the manual welder with only one welding machine. The quality and accuracy of robot welding systems are higher than that of manual welding.

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Section: Introductionmentioning

confidence: 99%

Dual-robot stud welding system for membrane wall

Chen

2021

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“…In the automobile industry, weld studs are extensively used to connect and fasten components, instruments, and interior decorations as every vehicle body needs up to hundreds of weld studs [1][2][3][4]. Therefore, it is essential for their position and attitude to be accurate for assembling the remaining components.…”

Section: Introductionmentioning

confidence: 99%

Monocular-vision-based method for online measurement of pose parameters of weld stud

Zhang

Xue

2015

Measurement

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“…Both males and females spent significantly more time in quadrants associated with the male CPB than in opposite control quadrants (males:d f = 18, (3,7,8,18,19,20,27,29,37)o rred (4,9,12,16,22,24,32,36)were specific to, or more prevalent in, the volatile profiles of male and female rats, respectively. Compounds presented in the shaded area between the chromatograms were common to both sexes.…”

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confidence: 97%

“…[17] Pest-management experts engaged in rat control have often observed that those traps that have captured ar at are more likely than new traps to yield another capture, [18] possibly because traps with prior captures carry some sort of rat odor.There is also emerging experimental evidence that urine odorants from conspecific rodents alleviate bait or trap shyness,asdemonstrated for desert gerbils (Meriones hurrianae), [19] Indian gerbils (Tateri indica), [20] Gambian giant pouched rats (Cricetomys gambianus), [21] and roof rats (Rattus rattus). [22] We have recently shown [23] that trap boxes were most effective in trapping wild brown rats when they were baited not only with afood mix [24] and with synthetic rat pup sound but also with urine-and feces-soiled bedding material of laboratory-kept brown rats.C ombined, all of these observations imply that specific scent cues or pheromone signals could be identified and formulated to enhance trap captures of rodents.…”

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The Sex Attractant Pheromone of Male Brown Rats: Identification and Field Experiment

2016

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Trapping brown rats is challenging because they avoid newly placed traps in their habitat. Herein, we report the identification of the sex pheromone produced by male brown rats and its effect on trap captures of wild female brown rats. Collecting urine- and feces-soiled bedding material of laboratory-kept rats and comparing the soiled-bedding odorants of juvenile and adult males, as well as of adult males and females, we found nine compounds that were specific to, or most prevalent in, the odor profiles of sexually mature adult males. When we added a synthetic blend of six of these compounds (2-heptanone, 4-heptanone, 3-ethyl-2-heptanone, 2-octanone, 2-nonanone, 4-nonanone) to one of two paired food-baited trap boxes, these boxes attracted significantly more laboratory-strain female rats in laboratory experiments, and captured ten times more wild female rats in a field experiment than the corresponding control boxes. Our data show that the pheromone facilitates captures of wild female brown rats.

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Drawn arc aluminum stud welding for automotive applications

Cited by 20 publications

References 0 publications

Dual-robot stud welding system for membrane wall

Dual-robot stud welding system for membrane wall

Monocular-vision-based method for online measurement of pose parameters of weld stud

The Sex Attractant Pheromone of Male Brown Rats: Identification and Field Experiment

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