A Study of Die Design Changes for the Improvement of the Soundness and Uniformity of Test Bars
Abstract
At the June 1936 meeting of the A.S.T.M.(American Society for Testing Materials) held at Atlantic City, Committee B-6 approved the recommendation of Subcommittee V that atmospheric tests should be conducted on three zinc alloys, designated by the Society as No. XXI, No. XXIII and No. XXV, and two magnesium alloys, designated as No. 12 and No. 13. Mr. Peirce reported to the Committee at the time that the New Jersey Zinc Company, using an insert or unit type of die, had shown a very marked improvement in the uniformity of physical properties of zinc die castings by accurate control of casting conditions and by changing the die design relative to gating, venting and the use of overflow wells. On the basis of this report, quoting from the minutes of the above-mentioned meeting 'It was agreed that standard dies and casting conditions should be adhered to in producing the test specimens'. Since the time of the Atlantic City meeting, changes have been made to our die which was similar to that used by most producers in the first Committee B-6 exposure program and again these changes succeeded in greatly improving the uniformity and strength of zinc die castings.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 20, 1937
- Accession Number
- ADA953879
Entities
People
- George L. Werley