Single-point cutting tool geometry — which angles does it possess? A standard single-point cutting tool used on a lathe includes several defined angles. Which of the following does such a tool have as part of its geometry?

Introduction / Context:
Single-point cutting tool geometry governs chip flow, cutting forces, tool life, and surface finish. Essential angles include rake, clearance, and the resulting wedge (lip) angle, as well as approach and inclination angles depending on the reference system used (ASA/ORS/NRS).

Given Data / Assumptions:

• Standard single-point tool (e.g., for turning).
• Common reference systems apply.
• Plain turning of ductile metals.

Concept / Approach:
Rake angle controls chip flow and cutting energy. Clearance angle prevents rubbing. The cutting (wedge) or lip angle is the included angle between rake and clearance surfaces; it must be sufficient to provide strength. Together, these angles define how the tool penetrates and shears the work material.

Step-by-Step Solution:
Identify key angles: rake (back and side), clearance (end and side), and included wedge/lip angle.Recognize that “cutting angle” commonly refers to the wedge/lip angle or the approach angle contextually.Conclude a single-point tool possesses rake, cutting (wedge), and lip angles collectively.

Verification / Alternative check:
Tool angle charts in textbooks and manufacturers’ catalogs list these angles explicitly for standard tool grinds.

Why Other Options Are Wrong:
Choosing only one angle ignores the interdependence of tool geometry. “None” is clearly incorrect.

Common Pitfalls:
Confusing approach angle with rake; neglecting that lip/wedge angle is complementary to rake and clearance (lip = 90° − rake − clearance in a simplified 2D view).

Final Answer:
All of these