Chung tay xây dựng cộng đồng Cấp bậc: Binh nhì
Tham gia: 10/1/2023 Bài viết: 11 Đánh giá: [0]
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The question, "Forged vs. Casting: Which Is Better?" is one I've been asked many times when it comes to rigging products. To properly explore the answer, let's first consider each process.
Forging and casting are two very different manufacturing methods. When casting something, the material is heated above its melting temperature, then poured into a mold to solidify. When something is forged, it is physically forced into shape while remaining solid - despite the constant heat it is subjected to.
As an engineer, I have always known that forgings generally have less surface porosity, finer grain structure, higher tensile strength, better fatigue life/strength and greater ductility than castings. In other words, it is generally better to use forgings for shackles. The basis of why is very simple. When you melt metal for casting, the grain size expands freely. When it cools back to a solid, the grain structure is coarser and more random, reducing its strength.
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