Investment Casting of Pivot Pegz

Pivot Pegz are the unique and innovative motorcycle footpegs that provides enhanced grip, control, and comfort for riders. The manufacturing process for these high-quality components relies on investment casting, a technique that ensures precision, durability, and excellent surface finishes.

Investment Cast Pivot Pegz

CFS Foundry is the top leading investment casting manufacturer in China, we have rich experience in producing different kinds of pivot pegz. In this article, we would like to introduce how pivot pegz are made in our foundry.

Investment Casting: A Versatile Manufacturing Process

Investment casting, also known as lost-wax casting, is a centuries-old manufacturing process used for the production of complex metal parts with high dimensional accuracy and intricate details. The key steps of the investment casting process are:

Investment Casting of Pivot Pegz

  • Pattern Creation: A wax replica of the desired part is made, including allowances for shrinkage during the casting process.
  • Shell Formation: The wax pattern is dipped into a ceramic slurry, forming a shell around the pattern. This shell is allowed to dry and harden, and the process is repeated to build up the required thickness.
  • Dewaxing: The wax pattern is melted and removed from the ceramic shell, leaving a hollow cavity that mirrors the final part.
  • Pouring: Molten metal is poured into the pre-heated ceramic shell and allowed to solidify.
  • Shell Removal and Cleaning: The ceramic shell is broken away, and the casting is cleaned and finished as needed.

Aerospace Grade Stainless Steel: The Ultimate Material for Pivot Pegz

Aerospace-grade stainless steel is an ideal material for investment casting of Pivot Pegz due to its exceptional strength, corrosion resistance, and temperature resistance. This material offers several advantages:

  • Strength and Durability: Aerospace-grade stainless steel is extremely strong and can withstand high levels of stress, making it suitable for demanding applications like motorcycle footpegs.
  • Corrosion Resistance: Its excellent corrosion resistance ensures that Pivot Pegz remain in pristine condition, even in harsh environments and extreme weather conditions.
  • Temperature Resistance: Aerospace-grade stainless steel can withstand high temperatures without losing its mechanical properties, making it an excellent choice for high-performance motorcycle components.

Heat Treatment: Optimizing the Mechanical Properties of Pivot Pegz

Heat treatment is a vital step in the manufacturing of Pivot Pegz, as it improves the mechanical properties of the castings. Common heat treatment processes for stainless steel include:

  • Solution Annealing: This process involves heating the stainless steel to a high temperature and then cooling it rapidly. This results in a uniform microstructure and enhanced corrosion resistance.
  • Precipitation Hardening: This treatment involves heating the stainless steel to a lower temperature and then cooling it slowly. This causes the formation of intermetallic precipitates, which strengthen the material.
  • Stress Relieving: This process involves heating the stainless steel to a specific temperature and holding it there for a set period before cooling. This helps to relieve internal stresses caused by casting, welding, or machining.

Electropolishing: The Ultimate Surface Finish for Pivot Pegz

Electropolishing is an electrochemical process used to remove material from a metallic surface, resulting in a smooth, mirror-like finish. It offers numerous benefits for Pivot Pegz:

  • Improved Surface Finish: Electropolishing results in a highly reflective and smooth surface that reduces friction and minimizes wear on the rider’s boots and motorcycle components.
  • Enhanced Corrosion Resistance: The process removes surface imperfections and contaminants, 4.3 Enhanced Corrosion Resistance (cont.): which could initiate corrosion. The smoother surface obtained through electropolishing increases the passivation layer’s effectiveness, further enhancing the stainless steel’s natural corrosion resistance.
  • Reduced Surface Adhesion: The electropolished surface reduces the adhesion of dirt, grease, and other contaminants, making it easier to clean and maintain the Pivot Pegz.
  • Improved Aesthetics: The mirror-like finish achieved through electropolishing enhances the appearance of the Pivot Pegz, giving them a premium, high-quality look.

Quality Control and Inspection: Ensuring the Highest Standards

To guarantee the performance and quality of investment-cast Pivot Pegz, a stringent quality control and inspection process is employed:

  • Dimensional Inspection: The investment castings are inspected to ensure they meet the required dimensions and tolerances. This may involve the use of coordinate measuring machines (CMM), calipers, or other inspection tools.
  • Material Testing: Material properties such as hardness, tensile strength, and chemical composition are verified through various testing methods, including hardness testing, tensile testing, and spectroscopic analysis.
  • Non-Destructive Testing (NDT): To identify any internal or surface defects, non-destructive testing techniques like radiographic inspection, magnetic particle inspection, and dye penetrant inspection may be employed.
  • Visual Inspection: The final step involves a thorough visual inspection of the Pivot Pegz to ensure they meet the highest aesthetic standards and are free from any surface defects.

Considerations for Designing Investment Cast Pivot Pegz

When designing investment cast pivot pegz, several factors should be taken into account:

  • Material selection: As discussed earlier, the choice of stainless steel grade will impact the performance, corrosion resistance, and cost of the pivot pegz.
  • Geometric complexity: Investment casting can accommodate complex geometries, but it is essential to consider factors such as draft angles, undercuts, and wall thicknesses to ensure successful casting and minimize defects.
  • Tolerances: Investment casting can achieve tight tolerances, but it is crucial to specify the required tolerances for critical dimensions and features to ensure optimal performance and fit.
  • Surface finish: The desired surface finish should be considered during the design stage, as this may impact the choice of post-casting processes and treatments.


Investment casting of Pivot Pegz using 17-4 ph stainless steel results in a high-quality, durable, and corrosion-resistant product that enhances rider comfort, control, and safety. The heat treatment process optimizes the mechanical properties of the stainless steel, while electropolishing provides an exceptional surface finish that reduces friction, increases corrosion resistance, and improves aesthetics. A rigorous quality control and inspection process ensures that every Pivot Pegz component meets the highest performance and quality standards, making them the ideal choice for motorcycle enthusiasts seeking the ultimate riding experience.

If you are looking for a reliable investment casting manufacturer in china for your pivot pegz design, pls feel free to send us the RFQ, we will be pleased to offer you a competitive price after that!

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