Reliable And Durable Din 1 3505 Alloy Steel With High Precision Polishing Process - China

DIN 1.3505 alloy steel is renowned for its high hardness, wear resistance, and rolling fatigue strength, making it widely used in bearings, automotive parts, and precision machinery.

However, to fully realize its properties, high-precision polishing is essential.

Polishing not only improves surface finish but also enhances corrosion resistance and service life.

Detailed Explanation of High-Precision Polishing Processes Given the characteristics of DIN 1.3505 alloy steel, the following are several mainstream high-precision polishing processes and their advantages: 1 - Mechanical Polishing: A Refinement of Traditional Processes Mechanical polishing achieves surface smoothing by gradually reducing abrasive grit size, combined with specialized equipment and abrasives (such as diamond suspension or aluminum oxide).

- Process Steps: 1 - **Rough Grinding**: Use coarser SiC sandpaper (such as 1000#) to remove cut marks and create a flat surface.

2 - **Fine Grinding**: Use a 9μm or 3μm diamond suspension with a low-toughness polishing cloth to further reduce surface roughness.

3 - Final Polishing: Mirror polishing to Ra ≤ 0.2μm using a 1μm or finer diamond suspension, or an oxide (such as chromium oxide).

Advantages: Relatively low cost, suitable for high-volume production; surface roughness can be precisely controlled.

2 - Electrochemical Polishing: Stress-free Mirror Finish

Electrochemical polishing removes microscopic surface material through electrolysis and is particularly suitable for complex DIN 1.3505 components.

Process Principle: The workpiece is placed in an electrolyte (such as a phosphoric acid-based solution), which acts as the anode.

An electric current (140-250 A/ft²) is passed through the workpiece, preferentially removing surface protrusions and achieving smoothness.

Advantages: No mechanical stress, avoiding the deformation caused by traditional polishing, making it suitable for thin-walled or precision parts.

Improved Corrosion Resistance: A dense oxide film is formed, enhancing resistance to pitting corrosion.

Suitable for micron-level precision, such as mirror finishing of bearing inner rings.

**Application Scenarios**: Used in aerospace bearings (such as turbine engine ball bearings) to remove heat-treated oxide scale and improve surface finish.

In the future, with the rise of smart manufacturing and green technologies, polishing processes for DIN 1.3505 alloy steel will develop towards automation and environmental friendliness.

For example, dry electrochemical polishing uses electrolytic beads instead of liquid electrolytes, reducing environmental pollution and making it suitable for precision machining of high-hardness alloys.

Company Contact:

• Posted By: Dongguan Songshun Mould Steel Co., Ltd.

• Phone: 0086 0769 85475596

• Address: 1st Floor, No. 1, Dongda Fourth Street, Shatou Community, Chang'an Town, Dongguan , GuangDong , China

• Email:

• Website: https://songshunsteel.com/

• Business Description: Established in 2009,Songshun Steel supplies a wide range of carbon, alloy and tool steel products, including high speed tool steel, cold work tool steel, hot work tool steel, plastic mould steel, engineering steel and machine structural steel etc.
  
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