SRB Process

The SRB (Skiving and Roller Burnishing) process is a precision machining method used to improve the surface finish and dimensional accuracy of hydraulic cylinder tubes. It involves two main steps: skiving and roller burnishing.

  1. Skiving:
    • Skiving is the process of removing a thin layer of material from the inner surface of the hydraulic cylinder tube using a cutting tool with multiple cutting edges.
    • The skiving tool is typically equipped with several cutting inserts arranged in a spiral pattern. As the tool rotates and advances through the tube, it removes material in a controlled manner, leaving a smooth and uniform inner surface.
    • Skiving helps to remove surface imperfections, such as scale, scratches, and irregularities, resulting in a smoother surface finish and improved dimensional accuracy.
  2. Roller Burnishing:
    • Roller burnishing is performed after skiving and involves passing a set of hardened and polished rollers through the tube.
    • These rollers exert high pressure on the inner surface of the tube, smoothing out any remaining micro-irregularities and work-hardening the surface.
    • The burnishing process also helps to improve the surface finish, reduce surface roughness, and enhance the dimensional accuracy of the tube.
    • Additionally, roller burnishing can impart compressive residual stresses on the surface, which can improve fatigue resistance and extend the service life of the hydraulic cylinder tube.

Benefits of the SRB Process:

  • Improved surface finish: The SRB process results in a smoother and more uniform inner surface finish, reducing friction and wear in hydraulic cylinder applications.
  • Tighter dimensional tolerances: Skiving and roller burnishing help to achieve precise inner diameter dimensions, ensuring proper fit and sealing in hydraulic systems.
  • Enhanced performance: The improved surface quality and dimensional accuracy obtained through the SRB process contribute to the overall performance and reliability of hydraulic cylinder tubes.

Overall, the SRB process is widely used in the manufacturing of hydraulic cylinder tubes to meet the stringent requirements of hydraulic applications in various industries, including construction, mining, agriculture, and manufacturing.