Document Type
Paper
Keywords
surface texture, roughness parameters, areal measurement
DOI
10.5703/1288284318497
Location
STEW 206
Start Date
23-9-2025 11:45 AM
Abstract
A review of the papers presented at the last three International Conferences on Shot Peening revealed that the most used parameters are Ra and Rz. There has been comparatively little exploration of other parameters, particularly the S-parameters. Furthermore, the ISO 4287 standard for profile parameters was replaced by the new ISO 21920-2 standard in 2021. This is accompanied by the introduction of new parameters as well as alterations to existing ones. This paper demonstrates the limitations of Ra and Rz, as well as Sa and Sz, and explores additional areal and profile parameters that are useful for the description of blasted or shot peened surfaces. Surfaces that have been shot peened for varying periods of time serve as illustrative examples. In this case, the Rk parameters and areal volume parameters best represent the development over time.
Included in
Roughness parameters for evaluating blasted or shot peened surfaces
STEW 206
A review of the papers presented at the last three International Conferences on Shot Peening revealed that the most used parameters are Ra and Rz. There has been comparatively little exploration of other parameters, particularly the S-parameters. Furthermore, the ISO 4287 standard for profile parameters was replaced by the new ISO 21920-2 standard in 2021. This is accompanied by the introduction of new parameters as well as alterations to existing ones. This paper demonstrates the limitations of Ra and Rz, as well as Sa and Sz, and explores additional areal and profile parameters that are useful for the description of blasted or shot peened surfaces. Surfaces that have been shot peened for varying periods of time serve as illustrative examples. In this case, the Rk parameters and areal volume parameters best represent the development over time.