Machining Process of S35C Steel Plate

S35C steel plate, a medium carbon structural steel under the JIS G 4051 standard, is known for its good machinability, making it suitable for various industrial applications. Understanding the machining process of S35C is essential for achieving optimal surface finish, dimensional accuracy, and mechanical performance.

The machining process typically begins with rough cutting or flame cutting to size the raw steel plate. Once the initial shape is obtained, milling or turning operations are performed using high-speed steel or carbide tools. Due to its medium carbon content, S35C provides stable cutting behavior with minimal tool wear, especially when proper coolant is applied.

Drilling and tapping are commonly used for creating holes and threads. Preheating is not usually required, but in certain applications—especially when tight tolerances or fine threads are involved—stress-relieving treatments may be applied before or after machining to prevent distortion.

For components requiring higher precision, finish grinding or polishing is conducted at the final stage to improve surface quality. Heat treatments like quenching and tempering can also be performed post-machining to enhance hardness and wear resistance.

Overall, the machining of S35C steel plate is straightforward and cost-effective, making it a practical choice for producing shafts, bushings, gears, and mechanical parts used in machinery and automotive applications.