How to choose the right turning tool?
Proper selection and application of turning tools, turning tool edge preparation is considered to be one of the essential elements for the successful manufacture and correct use of cutting tools. For different application conditions, cutting edge processing has different processing forms and parameters. Tool edge treatment refers to a process after the blade is finely ground and before coating, through chamfering, passivation, flattening, polishing and other treatments on the cutting edge, so as to improve the quality of the tool and increase the service life of the tool.
How to choose the right turning tool?
1. F-type cutting edge treatment
F-type cutting edge treatment, that is, neither chamfering nor blunt rounding. This cutting edge treatment method is sharp, with small cutting force, small shear deformation, and low cutting heat, but the cutting edge strength is low, and the cutting edge has initial defects, so it is rarely used.
2. E-type edge treatment
E-type edge treatment, that is, not chamfered but blunt. The edge type adopts the blunt round process, which eliminates the machining micro-defects on the cutting edge, strengthens the cutting edge, and increases the resistance to chipping and cracking.
3. T-shaped edge treatment
T-shaped edge treatment, that is, chamfered but not blunt. Through chamfering treatment, it has better impact resistance, and can replace the S-shaped edge in the case of reducing cutting force and high tolerance requirements.
4. S-shaped edge treatment
S-shaped edge treatment, that is, chamfer + blunt round. This form is the most common edge treatment, and it is also the preferred edge type in hard turning. It has higher strength than T-type, is more resistant to chipping and cracking, easier to predict tool life, and can produce more stable workpiece surface quality. Especially suitable for large depth of cut and intermittent machining.
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