Development of an Automatic Scraping Machine with Recognition for Bearing of Scraped Surfaces — Construction of Automatic Scraping Machine —

Tsutsumi, Hirotaka; Yamada, Ryuta; Kyusojin, Akira; Nakamura, Teruyuki

doi:10.1007/1-84628-559-3_74

Cited by 3 publications

(4 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Several research groups have set up systems for automated scraping. Tsutsumi et al built a dedicated gantry type machine with an end effector tool and a CCD camera to determine the locations to be scraped from the colored areas after rubbing [11][12][13]. Similar approaches were taken by Tong et al [14] and Yasuo et al [15].…”

Section: Overview and Literaturementioning

confidence: 99%

“…A key issue for automated scraping is the measurement of the workpiece surface before each cut to determine the areas that have to be scraped. Many research groups imitate the procedure of hand scraping by detecting dark and bright spots on the rubbed surface using cameras [11][12][13][14][15]19,20]. Fan et al scanned the surface using a dedicated system based on a DVD pick-up head [21], while Hsieh et al used a laser triangulation sensor [22].…”

Section: Overview and Literaturementioning

confidence: 99%

See 1 more Smart Citation

Investigation into Hand Scraping: A Microanalysis

Oßwald

Lochmahr

Bagci

et al. 2018

JMMP

View full text Add to dashboard Cite

Hand scraping is a manual surface finishing process that, despite its low productivity and high cost, is still applied in many industries because of its advantages concerning accuracy and tribology. In the presented microanalysis forces, movement patterns and tool orientation of individual hand scraping strokes were measured using a test stand, specifically designed for this purpose. It utilizes a camera, a three dimensional dynamometer, and an inertial measurement unit (IMU). The results show the basic characteristics of hand scraping. Typical courses of relevant quantities like cutting force, passive force, clearance, and directional angle are shown. In addition, the movement pattern of the tool during individual scraping strokes is analyzed. This research aims to contribute to a later implementation of automated scraping. The conducted research creates a base for future research regarding different scraping methods and achieved results.

show abstract

Section: Overview and Literaturementioning

confidence: 99%

Section: Overview and Literaturementioning

confidence: 99%

Investigation into Hand Scraping: A Microanalysis

Oßwald

Lochmahr

Bagci

et al. 2018

JMMP

View full text Add to dashboard Cite

show abstract

“…Two scraping approaches ("chess board pattern" and "dense pattern") were imitated by the system and the results were characterized. A similar system has been presented by Tsutsumi et al [13] who also developed a software functionality for adaptive machining of the workpiece. Other approaches include the use of CNC milling machine tools that were equipped with an actuator for the scraping strokes by Hsieh et al [14].…”

Section: Introductionmentioning

confidence: 99%

Macroanalysis of Hand Scraping

Oßwald

Gissel

Lochmahr³

2020

JMMP

View full text Add to dashboard Cite

Hand scraping is a manual metalworking method that is still used in many industries to obtain good planarity, low friction and good gliding properties of metal and plastic surfaces. However, it is characterized by low productivity and requires skilled and well-trained workers. This macroanalysis focuses on the strategy and procedure of the workers during the scraping operation. Forces and tool positions were acquired simultaneously and the resulting surfaces were measured after each scraping pass. Results show that in most instances differences between individual workers’ scraping styles are more significant than between consecutive scraping passes. This research was conducted in order to gather sufficient insight into the hand scraping method to take steps towards its automation.

show abstract

“…Based on the results, the microcomputer determines locations that require scraping. Tsutsumi et al [5][6][7] developed an automatic machine with a CCD camera and a scraper tool. An image processing method and an image coordinate system are used to identify the points of the bearings on the specimen and to precisely position the tool.…”

Section: Introductionmentioning

confidence: 99%