Question
Download Solution PDFOrthogonal rake system is also known as-
This question was previously asked in
NPCIL SA/ST ME GJ held on 07/11/2019 Shift-1
Answer (Detailed Solution Below)
Option 2 : Old ISO system
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NPCIL Scientific Assistant Quantum Mechanics Test
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Detailed Solution
Download Solution PDFExplanation:
A tool has two systems:
- American Standards System
- Orthogonal Rake System
ASA tool signature has 7 elements
- American Standards System (ASA) system ⇒ Back rake angle – side rake angle – end relief angle (ERA) – side relief angle – end cutting Edge angle – side Cutting Edge Angle- Nose Radius
- Orthogonal Rake System (ORS) or International system ⇒ I (inclination angle) – αn (Normal rake angle) - Side relief angle- end relief angle, end cutting edge angle – Approved angle – nose radius. It is also known as Old ISO system.
- In both, the system nose radius comes in the last.
- In given system 8 - 8 - 5 - 5 - 6 - 6 - 1, the following notations are indicated
- 8 shows Back rake angle
- 8 shows Side rake angle
- 5 End relief angle
- 5 Side relief angle
- 6 End cutting edge angle
- 6 Side cutting edge angle
- 1 nose radius
Last updated on Mar 27, 2025
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