GCSE Design and Technology AQA

Cutting, Abrasion and Addition

Cutting Techniques

• Shearing: Applying a high-pressure tool on the material to break it apart.
• Sawing: Used frequently in woodworking and metalworking with different types of saws.
• Laser cutting: A non-contact process which utilises a laser to cut materials, resulting in high-quality, dimensionally accurate cuts.

Abrasion Techniques

• Sanding: The process of smoothing an object by rubbing it with an abrasive (sandpaper), a technique commonly used in woodworking.
• Grinding: A type of abrasive cutting using grinding wheels to cut heavy materials.
• Blasting: A powerful, high-speed method of cleaning or etching surfaces using sand or other particulate matter.

Addition Techniques

• Welding: A fabrication process that joins materials, typically metals or thermoplastics, by using high heat to melt the parts together and allowing them to cool, causing fusion.
• Soldering: A process that joins two pieces of metal by melting and putting a filler metal into the joint.
• Adhesive bonding: The technique of joining materials, sometimes of different types, using a glue or adhesive substance.
• Fastening: Using devices such as screws, nails, or bolts to join materials together.

Remember that the choice of technique often depends on the material being worked on and the desired end product. Always consider the strengths, weaknesses, and safety implications of the chosen technique.