ASTM-B946 2023(Redline)

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B946-23 Standard Test Methods for Surface Roughness of Powder Metallurgy (PM) Products (Redline)

Published By	Publication Date	Number of Pages
ASTM	2023

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Categories: 25.220.40 - Metallic coatings, ASTM

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Description

ASTM B946-23

Redline Standard: Standard Test Methods for Surface Roughness of Powder Metallurgy (PM) Products

ASTM B946

Scope

1.1 These test methods cover measuring the surface roughness of powder metallurgy (PM) products at all stages of manufacturing from green compact to fully hardened finished component.

1.2 These test methods provide the definition and schematic of some common surface roughness parameters (R_a, R_t, and R_z_ISO)

1.3 This standard specifies two different standardized procedures for measuring the surface roughness of PM parts.

1.3.1 Method 1 uses a conical stylus and a Gaussian filter.

1.3.2 Method 2 uses a chisel (knife) edge stylus.

1.3.3 Each test method results in a different measure of surface roughness and the results are not directly comparable.

1.4 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard.

1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Keywords

PM; powder metallurgy; powder metallurgy parts; stylus; surface finish; surface roughness;

ICS Code

ICS Number Code 25.220.40 (Metallic coatings)

DOI: 10.1520/B0946-23

Additional information

Standard Title	B946-23 Standard Test Methods for Surface Roughness of Powder Metallurgy (PM) Products (Redline)
Published Code	ASTM
Publication Date	2023
ICS Codes	25.220.40 - Metallic coatings