Is a knife a complex machine?
You can check the answer of the people under the question at Quora “knife machine“
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Written by: Ximena
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Is a knife a complex machine?
You can check the answer of the people under the question at Quora “knife machine“
About Ximena
What is a machine, it’s an apparatus using or applying mechanical power and having several parts, each with a definite function and together performing a particular task.
Is a fixed blade knife a machine, no, as it doesn’t have several moving parts, would a folding knife be a machine, yes it could. But would it be a complex machine.
A complex machine is a combination of two or more simple machines that together perform a task. Hmm, if you had an out the front knife that is operated by a switch which activates a spring which deployed the blade which is the locked by a lever – that would meet the definition of a complex machine.
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No, I don’t think knife is a complex machine…. Because knife is a basic thing which is used by everyone in their daily lives.
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Depends on your definition of “complex”. To the average person, probably no. But to me as someone who calls himself a knife maker, yes. Many, many things go into a good knife and this is what makes it a complex machine in my view.
First and foremost is the steel it’s made of. A complex mix of elements in precise proportions combined under differing conditions. Each different “recipe” or alloy will give the finished product differing qualities and will allow for optimum use in specific tasks.
Secondly this piece of steel must be manipulated physically and chemically in various ways to allow the bladesmith to convert it into a knife. It must be annealed (softened), forged (heated & hammered into rough shape), ground to a final profile, drilled, re-hardened (heated to a specific temperature and cooled at a specific rate) , polished, tempered (another heating & cooling), and sharpened. The type of edge up on the knife is also dictated by it’s expected use.
Thirdly some sort of handle must be fashioned and attached to the bare steel of the knife. The handle design must meet the desired function of the knife. The material chosen, whether natural (wood, horn, or bone) or a synthetic (man-made) material also needs to be chosen to complement the final design and use of the knife.
Only after these steps and processes (and others I’ve probably left out) are completed in the proper way and order do you have a “knife” that can be used for helping you complete a physical task (which is my definition of a machine).
Apologies to all the bladesmiths out there who know I simplified the art of making a knife beyond belief, but I’m trying to give the general public an idea of the process, not a tutorial.
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Generally? No. A fixed blade knife wouldn’t even be a considered a simple machine as it has no moving parts. A folding knife with no lock, could be considered a simple machine, and once you get to a folding knife with a locking mechanism, you’ve met the definition of complex.
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