Chrome Stripping: A Crucial Process in CNC Machining(surface finish 125 Jack)

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CNC machining has revolutionized the manufacturing industry by bringing precision and efficiency to the forefront. One of the essential processes involved in achieving flawless results is chrome stripping. In this article, we will delve into the significance of chrome stripping in CNC machining and explore its various applications.

What is Chrome Stripping?

Chrome stripping refers to the removal of chrome plating from a metal surface, typically steel or aluminum, using chemical or mechanical methods. The primary purpose of chrome stripping is to prepare the metal substrates for further processing such as welding, painting, powder coating, or re-plating with different materials. It ensures clean surfaces, eliminating any potential issues that might arise due to incompatible coatings or compromised adhesion.

The Chrome Stripping Process:

Chemical Chrome Stripping:
Chemical chrome stripping involves submerging the parts in a caustic solution, which dissolves the chrome layer. Sodium hydroxide solutions are commonly used for this purpose. The process requires careful monitoring to prevent the etching of the base metal while effectively removing the chrome plating. Dilution ratios, temperature control, and immersion time dictate the success of the process.

Mechanical Chrome Stripping:
Mechanical chrome stripping relies on abrasive methods to remove the chrome layer. Techniques such as blasting with sand, glass beads, or other abrasives can effectively strip off the plating. While this method may be less precise than chemical stripping, it offers advantages in terms of controlled material removal and compatibility with complex shapes.

Applications of Chrome Stripping in CNC Machining:

1. Surface Preparation:
In CNC machining, chrome stripping plays a crucial role in preparing surfaces for subsequent treatments. By removing the chrome plating, manufacturers have a clean canvas free from residual oils, contaminants, or imperfections. This preparation facilitates accurate measurements, smoother finishes, and enhanced durability of the final product.

2. Reconditioning:
Over time, chrome plating may degrade or show signs of wear and tear due to environmental factors or prolonged usage. Stripping off the old chrome enables reconditioning of the metal components, thereby restoring their functionality and aesthetic appeal seamlessly.

3. Compatibility Enhancement:
Chrome stripping becomes imperative when compatibility issues arise between different coatings or finishes required for a specific CNC machining project. By removing the existing chrome layer, manufacturers can switch to alternative coatings that suit customer preferences or meet industry-specific requirements with ease.

4. Surface Analysis:
For quality control purposes, chrome stripping aids in accurately inspecting the underlying materials. It allows for thorough non-destructive testing techniques, which ensure that the base metal is intact and free from imperfections before proceeding with subsequent operations.


In CNC machining, chrome stripping serves as an essential step that ensures impeccable results. Whether it is for surface preparation, reconditioning, enhancing compatibility, or performing accurate inspections, this process holds immense importance. Manufacturers must carefully choose between chemical and mechanical stripping methods based on the specific requirements of each project. By doing so, they can guarantee optimal performance, reliability, and visual appeal of the final products produced through CNC machining. CNC Milling CNC Machining