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Mechanical
Cutting
-Mohd.Kadappi Bin Mohd. Sapie
-Mohd. Norsafarizan Bin Haji Awang
-Noralina Binti Zanidi
-Nur Athirah@Nabila Binti Mohd. Hashim
-Abdul Muiz Bin Nordin
Principle of Mechanical
Cutting
= Mechanical cutting, which includes tooling and
machining, is a process that uses power-driven
equipment to shape and form material into a
predetermined design. Some common machines used in
mechanical cutting include lathes, milling machines, and
drill presses, which correspond to the processes of
turning, milling, and drilling, respectively.
http://www.thomasnet.com/articles/custom-manufacturing-fabricating/mechanical-vs
laser-cutting
Differences
Hand shears
- Use to cut small length of sheet metals
- Build similarly to scissors but with a stronger shearing blade
- cuts perpendicular to the axis of the tool handle.
- consist of a moving shear blade with a fixed rake angle and shear angle.
Bench shears
- Operate similar to paper cutter.
- Have a fixed blade and a movable blade.
- Blades are straight and only used for straight cutting.
- They are able to punch holes in metal sheets.
Shear machine
- Used to cut straight lines into sheet metal.
- The blades are directly perpendicular to the surface getting punched.
- Not only can cut sheet metal, but also other metal forms.
Nibbler
- Cuts sheet material by a series of small rapidly reciprocating cuts.
- Able to create a hole in the middle of a sheet without having to cut up to that hole.
- Can be use on any type of sheet metal up to a 1/2 inch thick, provided that the metal is a softer type.
- They only work with sheet metal.
Maximum thickness of mild steel plate
cut by bench shears
• Mild steel -Steel that contains small amount of carbon
-Softer and easily shaped
• Bench shear-Shears that sit on a bench or stand.
-Variety of sizes and capacity to1/4 inch capacity in 3 - 36
inch
-Used to cut straight, curves and shapes
• Maximum cutting thickness1.6 mmsheet or10 mm round wire stock of mild
steel
Mechanical Cutting Processes
Mechanical Cutting Processes

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Mechanical Cutting Processes

  • 1. Mechanical Cutting -Mohd.Kadappi Bin Mohd. Sapie -Mohd. Norsafarizan Bin Haji Awang -Noralina Binti Zanidi -Nur Athirah@Nabila Binti Mohd. Hashim -Abdul Muiz Bin Nordin
  • 2. Principle of Mechanical Cutting = Mechanical cutting, which includes tooling and machining, is a process that uses power-driven equipment to shape and form material into a predetermined design. Some common machines used in mechanical cutting include lathes, milling machines, and drill presses, which correspond to the processes of turning, milling, and drilling, respectively. http://www.thomasnet.com/articles/custom-manufacturing-fabricating/mechanical-vs laser-cutting
  • 3. Differences Hand shears - Use to cut small length of sheet metals - Build similarly to scissors but with a stronger shearing blade - cuts perpendicular to the axis of the tool handle. - consist of a moving shear blade with a fixed rake angle and shear angle. Bench shears - Operate similar to paper cutter. - Have a fixed blade and a movable blade. - Blades are straight and only used for straight cutting. - They are able to punch holes in metal sheets. Shear machine - Used to cut straight lines into sheet metal. - The blades are directly perpendicular to the surface getting punched. - Not only can cut sheet metal, but also other metal forms. Nibbler - Cuts sheet material by a series of small rapidly reciprocating cuts. - Able to create a hole in the middle of a sheet without having to cut up to that hole. - Can be use on any type of sheet metal up to a 1/2 inch thick, provided that the metal is a softer type. - They only work with sheet metal.
  • 4. Maximum thickness of mild steel plate cut by bench shears • Mild steel -Steel that contains small amount of carbon -Softer and easily shaped • Bench shear-Shears that sit on a bench or stand. -Variety of sizes and capacity to1/4 inch capacity in 3 - 36 inch -Used to cut straight, curves and shapes • Maximum cutting thickness1.6 mmsheet or10 mm round wire stock of mild steel