Evaluating Shaver Sharpness by Measuring the Pulling Force on Artificial Hair
Demands for shaver blade durability are constantly increasing. Current blades are processed with a variety of coatings, and evaluating the resultant sharpness has become important. When whiskers are cut with a shaver, the blades are known to draw out the whiskers while shaving them off. JIS-C9614 (J...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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The Japan Society of Mechanical Engineers
2007-11-01
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| Series: | Journal of Advanced Mechanical Design, Systems, and Manufacturing |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/jamdsm/1/5/1_5_661/_pdf/-char/en |
| _version_ | 1818107897453740032 |
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| author | Takayuki TOKOROYAMA Norhaswira MOHD Noritsugu UMEHARA |
| author_facet | Takayuki TOKOROYAMA Norhaswira MOHD Noritsugu UMEHARA |
| author_sort | Takayuki TOKOROYAMA |
| collection | DOAJ |
| description | Demands for shaver blade durability are constantly increasing. Current blades are processed with a variety of coatings, and evaluating the resultant sharpness has become important. When whiskers are cut with a shaver, the blades are known to draw out the whiskers while shaving them off. JIS-C9614 (Japanese Industrial Standards Committee) states that a blade is sharp if, when cutting 15 artificial hairs, it can shave 11 or more of them to less than 0.4 mm. However, this method of evaluating the length of drawn and cut hairs requires observation of one hair at a time, and is thus very inconvenient. As a simpler method of evaluating sharpness, we propose a method of measuring the force to pull a whisker into the shaver as it is cut. It was assumed that artificial hairs are pulled when the shaver blade cuts them. We carried out a test to measure the amount of the pulling force when an artificial hair is cut, and confirmed that there was indeed a pulling force when the whisker and the pulling force, and showed that the relationship was proportional. The above result demonstrated that measuring pulling force to determine shaving effectiveness is more convenient than the conventional method of observation. |
| first_indexed | 2024-12-11T02:06:46Z |
| format | Article |
| id | doaj.art-c6326d6cd3154286923b93601af058cc |
| institution | Directory Open Access Journal |
| issn | 1881-3054 |
| language | English |
| last_indexed | 2024-12-11T02:06:46Z |
| publishDate | 2007-11-01 |
| publisher | The Japan Society of Mechanical Engineers |
| record_format | Article |
| series | Journal of Advanced Mechanical Design, Systems, and Manufacturing |
| spelling | doaj.art-c6326d6cd3154286923b93601af058cc2022-12-22T01:24:21ZengThe Japan Society of Mechanical EngineersJournal of Advanced Mechanical Design, Systems, and Manufacturing1881-30542007-11-011566166810.1299/jamdsm.1.661jamdsmEvaluating Shaver Sharpness by Measuring the Pulling Force on Artificial HairTakayuki TOKOROYAMA0Norhaswira MOHD1Noritsugu UMEHARA2Department of Mechanical Science and Engineering, Graduate School of Engineering, Nagoya UniversityDepartment of Mechanical Science and Engineering, Graduate School of Engineering, Nagoya UniversityDepartment of Mechanical Science and Engineering, Graduate School of Engineering, Nagoya UniversityDemands for shaver blade durability are constantly increasing. Current blades are processed with a variety of coatings, and evaluating the resultant sharpness has become important. When whiskers are cut with a shaver, the blades are known to draw out the whiskers while shaving them off. JIS-C9614 (Japanese Industrial Standards Committee) states that a blade is sharp if, when cutting 15 artificial hairs, it can shave 11 or more of them to less than 0.4 mm. However, this method of evaluating the length of drawn and cut hairs requires observation of one hair at a time, and is thus very inconvenient. As a simpler method of evaluating sharpness, we propose a method of measuring the force to pull a whisker into the shaver as it is cut. It was assumed that artificial hairs are pulled when the shaver blade cuts them. We carried out a test to measure the amount of the pulling force when an artificial hair is cut, and confirmed that there was indeed a pulling force when the whisker and the pulling force, and showed that the relationship was proportional. The above result demonstrated that measuring pulling force to determine shaving effectiveness is more convenient than the conventional method of observation.https://www.jstage.jst.go.jp/article/jamdsm/1/5/1_5_661/_pdf/-char/enbladesharpnesscuttingwearpulling forceartificial hair |
| spellingShingle | Takayuki TOKOROYAMA Norhaswira MOHD Noritsugu UMEHARA Evaluating Shaver Sharpness by Measuring the Pulling Force on Artificial Hair Journal of Advanced Mechanical Design, Systems, and Manufacturing blade sharpness cutting wear pulling force artificial hair |
| title | Evaluating Shaver Sharpness by Measuring the Pulling Force on Artificial Hair |
| title_full | Evaluating Shaver Sharpness by Measuring the Pulling Force on Artificial Hair |
| title_fullStr | Evaluating Shaver Sharpness by Measuring the Pulling Force on Artificial Hair |
| title_full_unstemmed | Evaluating Shaver Sharpness by Measuring the Pulling Force on Artificial Hair |
| title_short | Evaluating Shaver Sharpness by Measuring the Pulling Force on Artificial Hair |
| title_sort | evaluating shaver sharpness by measuring the pulling force on artificial hair |
| topic | blade sharpness cutting wear pulling force artificial hair |
| url | https://www.jstage.jst.go.jp/article/jamdsm/1/5/1_5_661/_pdf/-char/en |
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