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On the Formulas for Three-wire Method of Measurement of the Pitch Diameter of the Type-2 Chased Worm Thread Screw with a Large Lead Angle
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- MOROZUMI Muneharu
- 正会員信州大学工学部
Bibliographic Information
- Other Title
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- 進み角の大きい2形ウォームの有効径測定用三針法計算式
- ススミカド ノ オオキイ 2ケイ ウォーム ノ ユウコウケイ ソクテイヨウ サ
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Description
The present paper deals with the formulas to calculate the pitch diameters or the measurement over wires of the type-2 chased worm thread screw, which have one or multi-start threads and large lead angles, in measuring screw threads by the three-wire method. Furthermore, calculation has been made on the best wire diameter that enables the wire to touch the spiral on the screw surface whose diameter is equal to the nominal pitch diameter, together with the smallest wire diameter that provides the measurement over wires equal to the major diameter of an external thread. The approximate formula to calculate the pitch diameter of the type-2 chased worm thread screw with high accuracy is proposed, and the accuracy of the approximate formula is discussed. Some numerical examples are given for the application of the theory to practice.
Journal
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- Journal of the Japan Society of Precision Engineering
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Journal of the Japan Society of Precision Engineering 45 (532), 493-499, 1979
The Japan Society for Precision Engineering
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Details 詳細情報について
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- CRID
- 1390001204764156928
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- NII Article ID
- 130003961488
- 110001290613
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- NII Book ID
- AN00130014
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- NDL BIB ID
- 2049430
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- ISSN
- 03743543
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL Search
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed