Far more than simply pressing a button, our profession is a combination of precision, expertise, and innovation. At Mazza Décolletage, we transform a simple metal bar into a complex component.
"Your job is easy, just a bit of programming, start the program and then you can relax…"
If only it were that simple! Our profession requires extensive technical expertise, constant curiosity, and continuous daily learning.
Understanding the basic principles of cutting
- The tool must be 1.5 to 2 times harder than the material being cut.
- Cutting speed depends on the material, tool shape, and operation.
- Clearance angles prevent tool friction.
- Depth of cut corresponds to the thickness of removed material.
- Feed rate is the movement speed of the tool.
- Cutting angle reduces material resistance.
Tool positioning and understanding cutting forces are essential.
Chip formation
Chips can be continuous, segmented, or brittle depending on the material and additives.
Tool lifespan
It depends on:
- The machined material
- The geometry and quality of the tool
- Machining parameters (speed, feed, lubrication)
Tool materials vary: high-speed steel, carbide, cermets, etc.
Machining problem analysis
The process includes identifying causes and implementing solutions.
Common causes
- Speed, feed, lubrication
- Machine condition
- Human error
Observed problems
- Dimensional variations
- Concentricity
- Surface finish
Understanding machinable materials
Mechanical properties strongly influence machinability.
Machining operations
- Turning
- Plunging, shaving, facing
- Cutting-off
- Boring
- Drilling
- Tapping
- Threading, rolling
- Knurling