SAE ARP 1947B-2007 航空器结构质量D357型铝合金铸件枝状晶体分支间距的测定和验收

标准号：SAE ARP 1947B-2007
中文标准名称：航空器结构质量D357型铝合金铸件枝状晶体分支间距的测定和验收
英文标准名称：Dendrite Arm Spacing of Structural Aircraft Quality D357 Aluminum Alloy Castings, Determination and Acceptance of
标准类型：V11
发布日期：2007/8/1 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：V11
国际标准分类号：49.025.20
引用标准：ASTM B 557-2006;ASTM B 557M-2006;ASTM B 557M-2007
适用范围：This document covers the recommended practice for determining the acceptability of the dendrite arm spacing (DAS) of D357-T6 aluminum alloy castings required to have tensile strength not lower than 50,000 psi (345 MPa). To apply this method, at least two coupons used for DAS measurement and tensile testing, shall be attached to the casting in locations as defined by the cognizant engineering organization. Areas of the casting which require DAS control must be accessible for surface DAS measurements.