Methods of Metal Working and Their Effects on Implants

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Forging is basically the art of the blacksmith. The metal is heated as well as hammered or squeezed into shape. A die is occasionally used; this is a mold to guide the flow of the metal. Drop forging, the most commonly utilized forging method, means that the piece is formed in a mould comprising of two or more parts in an eccentric press. Forging produces an orientation of the grain flow which makes the metal stronger than before. Many orthopedic implants use this technique for shaping the raw material.

Casting

Casting involves heating the metal to a molten state and pouring it into a mould. In comparison to Forging, the strength of processed product is less and there may be cracks/ blow holes inside if metal flow is improper during casting. Few fracture fixation orthopedic implants, if any, are presently fabricated in this way.

Rolling & Drawing

Rolling (between rollers) as well as drawing (through a hole in a hardened plate) are utilized to form bar and wire.

The material is plastically deformed in the procedure and the grains turn out to be elongated in the direction of deformation. Most of the raw material in form of wire/ rod or Sheet is processed in this way.

https://www.siiora.com/blogs/methods-of-metal-working-and-their-effects-on-implants/




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