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A new ASTM standard will be useful to slide and engine companies, as well as makers of bushing materials, in studies that involve the measurement of system friction forces. The new standard, ASTM G203 , Guide for Determining Friction Energy Dissipation in Reciprocating Tribosystems, was developed by Subcommittee G02.50 on Friction, part of ASTM International Committee G02 on Wear and Erosion.…
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Flow characteristics of fine metal powders are important in filling dies for pressing of powder metallurgy compacts, which are later sintered and sometimes machined into finished parts. The flow rate, as measured by a new ASTM standard, determines the flow necessary for a precise quantity of powder to be introduced into the die. The new standard, B964 , Test Methods for Flow Rate of Metal Powders…
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Two recently approved ASTM International standards provide user-friendly tests for properties of sintered metallurgy products. The new standards, developed by Subcommittee B09.04 on Bearings, are ASTM B962 , Test Methods for Density of Compacted or Sintered Power Metallurgy (PM) Products Using Archimedes’ Principle, and ASTM B963 , Test Methods for Oil Content, Oil-Impregnation Efficiency and…
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Subcommittee G02.10 on Erosion by Solids and Liquids, part of ASTM International Committee G02 on Wear and Erosion, is interested in hearing from anyone who uses cavitation erosion testing in their work. The objective of this survey is to help the subcommittee determine the current degree of interest in and importance of cavitation erosion test methods. The subcommittee is especially interested…
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A proposed new standard being developed by ASTM International Committee B09 on Metal Powders and Metal Powder Products offers a solution to the challenge of handling and characterizing very fine powders. Subcommittee B09.02 on Base Metal Powders is developing the proposed standard, WK13023 , Test Method for Determination of Tap Density of Metallic Powders by a Constant Volume Measuring Method. …
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Conventionally processed powder metallurgy materials often exhibit open microporosity at the surface. While it is a natural part of the process, this microporosity can affect the measurement of surface finishes. To cover this and other issues that arise from measuring the surface finish of powder metallurgy, ASTM International Committee B09 on Metal Powders and Metal Powder Products has developed…
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A task group of ASTM International Committee G02 on Wear and Erosion is seeking interested parties to participate in the revision of ASTM G 32, Test Method on Cavitation Erosion Using Vibratory Apparatus. The standard and the task group are under the jurisdiction of Subcommittee G02.10 on Erosion by Solids and Liquids. The task group is specifically seeking participants with any of the following…
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ASTM International Committee F16 on Fasteners has recently approved an important new standard that deals with coated threaded fasteners and washers by hot-dip zinc galvanizing. The standard, F 2329, Specification for Zinc Coating, Hot-Dip, Requirements for Application to Carbon and Alloy Steel Bolts, Screws, Washers, Nuts and Special Threaded Fasteners, is under the jurisdiction of Subcommittee…
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ASTM International Committee F16 on Fasteners has developed a new standard, F 2329, Specification for Zinc Coating, Hot-Dip, Requirements for Application to Carbon and Alloy Steel Bolts, Screws, Washers, Nuts, and Special Threaded Fasteners. The standard, which is under the jurisdiction of Subcommittee F16.03 on Coatings on Fasteners, covers the requirements for hot-dip zinc coating applied to…
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ASTM International Committee D33 on Protective Clothing and Lining Work for Power Generation Facilities has approved a revision to standard D 4260, now titled Practice for Liquid and Gelled Acid Etching of Concrete. The revised standard is under the jurisdiction of Subcommittee D33.05 on Application and Surface Preparation. According to Tamryn Doolan, president and CEO, Surface Gel Tek, the…