A Three Dimensional Surface Finish Measuring System that Excludes Porosity to Improve Quantification of Grounded or Lapped Thermal Spray Coated Surfaces

Monday, May 11, 2015: 8:20 AM
Room 101B (Long Beach Convention and Entertainment Center)
Mr. Harold E McCormick , C-K Engineering, Ellisville, MO
Mr. Will J Pisoni , C-K Engineering, Ellisville, MO
Abstract

Proposed Paper

ASM Thermal Spray Conference

May 11-14, 2015

The surface finish characteristics of thermally applied coatings are an important component in establishing the resultant wear and friction values of the tribological systems. An ongoing issue, in terms of specifying and measuring the surface finish of the thermally applied coatings, is the inability to separate the inherent surface finish from the effect of porosity.

The paper provides data developed utilizing a recently developed three dimensional surface finish measuring system. The advanced SEE 3-D Three Dimensional Surface Finish System quantifies:

  • Torn and folded material developed as a result of the honing or grinding process in applications such as engine cylinder bores

  • Size distribution and percent area occupied by the surface porosity

  • Surface finish over the total area of use

  • Hone angles in cylinder bore or grinding lead angles on seal surfaces

The SEE 3-D Three Dimensional Surface Finish System provides a 95% confidence value of 3-D or 2-D finishes.

See more of: Testing and Characterization 1
See more of: Thermal Spray Applications