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Metal Mass Production Methods: A Guide to Raw Materials and Supply Methods

模型製作, 模型生產, 治具製作廠商, 模具製作廠商, 測試治具製作, 產品模型製作, 模型製作公司, 塑膠模型製作, 模型 翻模, 公仔模型製作, 公仔生產, 客 製 化模型 公仔, 樹脂公仔製作, 矽膠模具製作, pvc模型製作, 金屬模具製作, 模具製作廠商, 簡易模具製作, 塑膠模具製作流程, 矽膠模具製作, 模具開發流程, 模具設計, 塑膠模具製作流程, 模具加工流程, 汐紫模型, 3d列印代工推薦, 3d列印矽膠模具, 橡膠3d列印, 3d列印翻模, 矽膠 翻模 代 工, 3D 列印 代工 學生, 光固化代印價格, 3d列印模型, 3d列印模型製作, 3d列印公仔, 3d列印圖檔製作, 3d列印廠商, 大型3d列印代工

Metal Mass Production Methods: A Guide to Raw Materials and Supply Methods

Introduction

The choice of a metalworking method often determines the form and supply method of its raw materials. From molten liquid metal to solid metal bars and plates to fine metal powders, different processes require distinct upstream raw materials. Understanding these differences helps us gain insight into the essence of various manufacturing technologies.

Detailed Explanation of Raw Materials and Supply Methods for Each Process

Casting
All casting methods share the commonality of using molten metal (melt) as the raw material. This melt is stored in a holding furnace and then fed into the mold using various methods.

  • Sand Casting & Shell Casting: Manual or automated pouring is often performed using a ladle.
  • Low-Pressure Casting: The molten metal is fed upward or downward into the mold using air pressure.
  • High-Pressure Die Casting: The molten metal is transferred from the holding furnace to a press chamber (shooting barrel) where it is ejected at high speed.

Sheet/Tube Forming
This process uses solid metal coils, sheets, or tubes. These standardized sizes are fed into a press, bending machine, or tube bending machine, where they are formed into their final shape through die pressure.

Aluminum Extrusion
Aluminum extrusion uses a preheated, solid aluminum billet. Under high temperature and pressure, the machine squeezes the solid aluminum billet through a custom-shaped die, like squeezing toothpaste, to form a continuous, long profile.

Forging
Forging uses solid metal bar or wire billet. Depending on the process temperature (hot forging, warm forging, or cold forging), the billet is hammered or squeezed under intense pressure at varying temperatures, deforming it into a high-strength part.

Metal Injection Molding/Powder Metallurgy (MIM/PM)
This process uses fine metal powder as its base material. In the MIM process, metal powder is first mixed with a polymer binder to create a “feedstock” similar to plastic pellets, which is then injection molded. Traditional powder metallurgy (PM) involves mixing metal powder with a lubricant and then directly pressing and forming it in a mold.

CNC Machining
CNC machining offers the most flexibility in raw materials. These can be solid metal bars or sheets purchased directly from the factory, or preformed blanks from other processes (such as casting, forging, and extrusion). CNC machining performs precision secondary operations such as milling, drilling, and tapping on these raw materials to achieve the required final dimensional accuracy.

Conclusion

Based on the raw material form, metalworking can be divided into three categories: “casting” using liquid metal, “forging/forming” using solid metal for plastic deformation, and “powder metallurgy” using metal powder. CNC machining plays the role of connecting these various processes and completing the final stage of precision machining. Understanding which raw material form your product is best suited to start with is fundamental to planning your overall manufacturing process and costs.