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basic material removal - Coggle Diagram
basic material removal
2.1
material removal
process of
grinding
Contact with Workpiece: The spinning grinding wheel touches the workpiece, and the friction removes small chips of material from its surface.
Cutting Action: The abrasive particles on the wheel act like tiny cutters, shaving off material from the surface of the workpiece.
Heat Generation: Grinding generates heat due to friction. Coolants are often used to reduce heat and prevent damage.
Surface Finish: The process results in a smooth, precise surface, making grinding ideal for finishing and shaping parts.
Grinding Wheel: The wheel is made of tiny abrasive particles that cut into the workpiece.
type of grinding
Types of Grinding:
Surface Grinding: For flat surfaces.
Cylindrical Grinding: For cylindrical shapes.
Centerless Grinding: For small parts without support.
Internal Grinding: For grinding inside holes or tubes.
2.2
depth of material
removed
2.2.2
deflection and barrelling factor
Deflection:
What it is: Deflection is when the workpiece or tool bends or shifts due to the force applied during machining.
Cause: It happens when too much force is applied, causing the material or tool to move in an unwanted direction.
Effect: It can make the final shape of the workpiece inaccurate.
Example: If the grinding wheel pushes too hard, the workpiece might bend slightly, changing its shape.
Barrelling Factor:
Cause: This can happen if the cutting force is uneven, often when the tool or wheel wears unevenly.
Effect: The part may end up with a curved shape instead of being flat.
Example: After grinding, a part that should be flat might look like a barrel, with the center being thicker than the edges.
What it is: Barrelling is when the workpiece becomes slightly curved, wider in the middle and narrower at the ends, due to uneven forces.
2.2.1
depth of cut and real depth ot cut
Depth of Cut:
For example, if the grinder removes 0.1 mm of material from the surface, the depth of cut is 0.1 mm.
This is the amount of material you plan to remove in one pass.
Real Depth of Cut:
This is the actual amount of material removed, taking into account the shape and angle of the cutting tool or grinding wheel.
It can be less than the planned depth of cut due to the way the tool contacts the workpiece.
Difference:
Depth of Cut is the planned amount to remove.
Real Depth of Cut is the actual material removed, which can be affected by the tool's shape and how it cuts.