Shaper → single-point 1. tool (smaller workpieces) Planer → 2. cutting tool (larger workpieces) 3. machine → rotating cutter with multiple 4. (horizontal or vertical), for holes and slots Drilling machine → circular 5. with rotating 6. • hand-feed drills → 7. operated • power-feed drills → automatic feeding 8. Grinding machine → abrasive rotating 9. to remove material •10. grinder → shaping outside of workpiece • centreless grinder → two 11. wheels • tool and cutter grinder → multiple grinding wheels • surface grinder → 12. wheel and rotary table
5.1 Answer the question: what is the difference between a shaper and a planer?aperta
Soluzione suggerita:The shaper is used for small workpieces and its cutting tool moves back and forth, whereas the planer is used for larger workpieces and the cutting tool is stationary.
5.2 Answer the question: what are milling machines used for?aperta
Soluzione suggerita:They are mainly used to create both flat or irregular surfaces; they can bore holes and cut slots.
5.3 Answer the question: what defines a milling machine?aperta
Soluzione suggerita:Its orientation, which can be either horizontal or vertical.
5.4 Answer the question: what is the main feature of a vertical spindle machine?aperta
Soluzione suggerita:It is equipped with a swivelling head which ensures greater flexibility.
5.5 Answer the question: how does a drilling machine create circular holes in the workpiece?aperta
Soluzione suggerita:It uses a rotating drill, which typically has multiple cutting edges.
5.6 Answer the question: what is the difference between hand-feed and power-feed drills?aperta
Soluzione suggerita:Hand-feed drills are manually operated for precise hole-making, while power-feed drills have an automatic feeding mechanism for the cutting tool.
5.7 Answer the question: how does the grinding process work?aperta
Soluzione suggerita:It removes material from a surface by rubbing it against an abrasive rotating wheel.
5.8 Answer the question: what does a surface grinder consist of?aperta
Soluzione suggerita:It consists of an abrasive wheel, a holding device, and a rotary table.
6. Listen to the recording about advanced grinding machine tools, then fill in the table.
CNC Cylindrical Grinding Machines
Purpose: Grinding 1. surfaces, both externally and internally, to achieve tight 2. and superior surface 3. on complex profiles and surfaces Applications: Aerospace, automotive, and precision manufacturing Advantages: Precise control over the grinding process through 4. , ensuring high accuracy and 5. Equipment:6. grinding wheel + advanced abrasives such as 7. Result: Efficient material 8. and superior surface 9. In the aerospace industry: Turbine and 10. parts → strict quality and performance standards In the automotive sector: Camshaft and crankshaft grinding → engine 11. and 12.