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how many ways to cut a material?

I'm thinking that there are three possible ways to cut any material...

  1. oxidize it along the cut line. For example, burning through with an oxy- acetylene torch. This is often called "burning" in the metal trades.

  1. tear it apart with a force that exceeds the tensile strength. I don't know the proper term for this process.

  2. push through it with a force that exceeds the compressive strength. I also don't know the proper term for this process.

Am I correct?

what tools do what? For example, what exactly does a scissors do? Is that different than what a knife does?

Reply to
Alan Horowitz
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No oxidation in inert envirinments with ortch or laser

many materials can be melted or vaporized without oxidation

Reply to
Sam Wormley

  1. Water jet cutting.
  2. Sandblasting.
  3. E-beam cutting.
  4. EDM.

  1. Chemical milling.

I'm sure I could think of others, if I bothered to spend another 30 seconds thinking about it.

Reply to
Mark Thorson

Also melt it and pour the results into little molds.

Bob Kolker

Reply to
Robert J. Kolker

-- Laser, plasma, etc cut. Using heat sums it up.

-- Not practical. Little comtrol over where it'd break unless part had a reduced section.

-- That's shearing as with a die and press. High velocity water is used to cuts some materials.

-- Shear, the same basic action for both.

Reply to
Jeff Finlayson

A lot of other methods have already been suggested. Another one that comes to mind: ultrasonic cutting.

Reply to
bob

Failure Modes: Gross yielding Buckling Creep Brittle fracture Fatigue, low cycle Fatigue, high cycle Contact fatigue Fretting Corrosion Stress-corrosion cracking Galvanic corrosion Hydrogen embrittlement Wear Thermal fatigue Corrosion fatigue

Reply to
Tom Walz

Shearing Bearing Compression Adiabatic Shear Melting Over-aging Thermal shock

Reply to
Mark Folsom

Those are all failure modes, not manufacturing processes.

Reply to
Jeff Finlayson

material...

Die stamping

Dropping a building

Injection molding

Jack hammer

Brinnelling to improve surface condition (but not for cutting in two) Sandblasting as a machining process

*Some* of them are used in manufacturing. Some of the others are used by artists to provide interesting surfaces.

David A. Smith

Reply to
N:dlzc D:aol T:com (dlzc)

-- Of course they are, no duh. But failure modes aren't manufacturing processes.

Reply to
Jeff Finlayson

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