Plating & Coating Thickness Testing

Coating thickness is an important variable that plays a role in product quality, process control, and cost control. Measurement of film thickness can be done with many different instruments. Understanding the equipment that is available for film thickness measurement and how to use it is useful to every coating operation.
The issues that determine what method is best for a given coating measurement include the type of coating, the substrate material, the thickness range of the coating, the size and shape of the part, and the cost of the equipment. Commonly used measuring techniques for cured organic films include nondestructive dry film methods such as magnetic, eddy current, ultrasonic, or micrometer measurement and also destructive dry film methods such as cross-sectioning or gravimetric (mass) measurement. Methods are also available for powder and liquid coatings to measure the film before it is cured.
We are an internationally recognized service provider for the testing of plating, coating, thickness of different materials. These services are rendered by us paying meticulous attention to minutest details and hence are in sync with ISO and other specifications.

We are one of the highly trusted company that is Govt. Approved and has a NABL accredited testing house. We offer these testing services for the following:

• Nickel Plating
• Chrome Plating
• Zinc Plating.

The quality of machined surface is characterized by the accuracy of its manufacture with respect to the dimensions specified by the designer. Every machining operation leaves characteristic evidence on the machined surface. This evidence in the form of finely spaced micro irregularities left by the cutting tool. Each type of cutting tool leaves its own individual pattern which therefore can be identified. Alternatively surface finishes imparted by shot blasting, shot peening, Electro Discharge EDT, or other plating operations impart a specific surface finish.

This pattern is known as surface finish or surface roughness and can be measured by a surface profilometer machine which quantifies the surface roughness i.e. positive deviation from a datum plane (peak) or negative deviation from a datum plane (valley) as well as peaks per inch. The roughness is expressed in micro-inches or micrometers and expressed as AR (arithmetic average) or RMS (Root Mean Square) values.

Narang Metallurgical & Spectro Services offer Surface Roughness Measurement parts at our facility which can provide a valuable evaluation for warranty and product issues, such as:

• Wear verification
• Noise or mating part irregularities
• Seal Leaks

Narang Metallurgical proficiency with surface measurement allows us to accurately identify the problem at hand, apply standards, and utilize the proper equipment for surface analysis.

Narang Metallurgical can help you make sense of your surface roughness measurement requirements, provide the proper means of surface analysis, and establish the correct parameters necessary to help you qualify sensitive details of your part’s performance.