How To Understand Mild Steel Material Machining Process
Mild steel is a type of steel and not an alloy. We use the material in combining both iron and carbon. The mild steel acquires magnetic traits from iron. Other qualities like surface hardness arise from carbon. The compound possesses unique chemical properties making it different from other elements. Thus, improving the surface quality of the metal.
Steel mainly consists of iron. The metal also contains the carbon but varies in content. There are different types of carbon content:
- Low-carbon steel
- Medium-carbon steel
- High-carbon steel
The carbon content of 0.5%-o.25% makes up mild steel. Hence, mild steel is low-carbon steel. The characteristics are;
- Easy to weld and machine
The malleability and ductility make the material suitable for machining. Customers can budget flexibly on their projects since it’s cheap. At Creatingway, we use mild steel material machining in the making of;
- Construction materials
- Automotive body parts
How is Mild Steel Made?
We follow four major steps in obtaining mild steel from iron ore.
Iron mix with coal and lime then placed in a blast furnace. The furnace can either be an Electric Arc or Basic Oxygen. Steel parts produced from Electric Arc are of higher quality.
In this step, we mainly focus on reducing the carbon content. The reduction is gauged according to the desired
extent. To improve the properties of steel, we add alloying elements. Monitoring and controlling heat are critical in this step. Also, cooling of the furnace is essential.
Casting and Primary Forming
The process requires steel to have reached the targeted carbon content. Also, mechanical properties are already improved to a specific degree. Then, we pour the steel into a mold called casting. Curing of the molten steel occurs, forming various geometries. Later, crystal structures of cast steel are cut into smaller parts. The casted steel entails imperfections and defects. A primary forming process known as hot-rolling reduces blemishes. After the application of the process, the steel obtains more;
The process improves the mechanical and chemical properties of mild steel material machining. Examples of secondary forming processes are;
Proper application of metallic coatings is correctly made in these processes.
Mechanical Properties of Mild Steel
Mild steel entails lower carbon content compared to other carbon steel. Also, the material has unique qualities differentiating it from the rest. These are;
- Great impact strength
- Great ductility
- Good malleability with cold-forming possibilities
- Great weldability
However, the steel has low tensile strength. The trait makes it fragile compared to other types of steel. To improve tensile strength, we use carburizing heat treatment. The process hardens the surface by heating mild steel. Then, the steel cools down, making it’s core soft and pliable.
What Are The Applications of Mild Steel Material?
Construction and Infrastructure
Due to good tensile strength, mild steel is appropriate for construction. Projects requiring building frames need seismic and wind endurance. Furthermore, the material in use should be corrosion resistant. Not only that but also fire retardant. Mild steel fits into all critical aspects, making it suitable for construction.
Machine accessory manufacture requires flexibility, hardness, and strength. Mild steel having low carbon content suits the manufacture of machinery. The material can easily be cut, pressed, and molded without breaking.
Mild steel rarely rusts due to its low carbon content. The trait enables cookware to stay sharp and clean. The material is a non-stick material since its heat-resistant. These aspects make mild steel healthier than aluminum cookware.
The flexibility of mild steel makes it essential in pipe making. With the aid of the material, the manufacture of piped products is easier. These include steel pipes for transporting;
- Natural gas
- Food-safe materials.
Also, mild steel pipes used outdoor don’t rust. They are more environmentally friendly compared with plastic pipes. Additionally, mild steel lasts longer than any other piped product.
How To Do Mild Steel CNC Machining and Short-run Production?
The machinability of steel depends on the carbon content. If the carbon content is low, then the machinability of steel is easier. However, the softness of the material makes it difficult to machine. Chips that appear during the process tend to stick and accumulate. Hence, more time is spent on cleaning damaging cutting tools. We use surface-hardening to reduce the accumulation effect.
Case hardening makes the outer surface of the mild steel hard. As for the interior, it remains soft, lessening chip accumulation. The core is soft, absorption of external stress is easy. Thus, preventing the breaking of the material during the CNC machining.
Mild steel material machining usage in CNC machining services is of quality and cheap. Compared to casting and molding, CNC is swifter. The process is much more affordable as it doesn’t make molds.
In Conclusion, Mild steel has low-carbon content steel of 0.25%. Most industries use it due to its unique properties. At Creatingway, we use CNC machining in making mild steel material machining prototypes. If required in large volumes, then metal injection molding is suited. Creatingway offers the best services in terms of prototyping. Our years of experience have enabled us to different machine kinds of steel. These are; carbon, scrap, stainless, and alloy steel. Choose Creatingway in projects related to mild steel processing.
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