Medical syringe needles, also known as hypodermic needles, are made through a precise manufacturing process that transforms stainless steel into a sharp, hollow device for injections and withdrawing fluids. Here's a breakdown of the steps:
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Starting Material: Medical syringe needles are made from stainless steel.
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Tube Formation:
- A flat strip of stainless steel is rolled into a tubular shape using a milling machine.
- A laser then welds the seam, creating a closed tube.
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Tube Drawing: The tube is then passed through a die several times in a process referred to as "tube drawing." This reduces the diameter and increases the length of the tube.
In summary, hypodermic needles are created by rolling and welding stainless steel strips into tubes, followed by a tube drawing process to achieve the desired dimensions.
