ASTM E2218-02
Historical Standard: ASTM E2218-02 Standard Test Method for Determining Forming Limit Curves
SUPERSEDED (see Active link, below)
ASTM E2218
1. Scope
1.1 This method gives the procedure for constructing a forming limit curve (FLC) for a metallic sheet material by using a hemispherical deformation punch test and a uniaxial tension test to quantitatively simulate biaxial stretch and deep drawing processes.
1.2 FLCs are useful in evaluating press performance by metal fabrication strain analysis.
1.3 The method applies to metallic sheet from 0.5 mm (0.020 in.) to 3.3 mm (0.130 in.).
1.4 The values stated in SI units are to be regarded as the standard. The inch-pound equivalents are approximate.
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 and health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
A568/A568M Specification for Steel, Sheet, Carbon, Structural, and High-Strength, Low-Alloy, Hot-Rolled and Cold-Rolled, General Requirements for
E6 Terminology Relating to Methods of Mechanical Testing
E8/E8M Test Methods for Tension Testing of Metallic Materials
E517 Test Method for Plastic Strain Ratio r for Sheet Metal
E646 Test Method for Tensile Strain-Hardening Exponents (n -Values) of Metallic Sheet Materials
Keywords
circle grid; forming limit curve (FLC); forming limit diagram (FLD); limiting dome height (LDH); major strain; minor strain; strain analysis; Biaxial stress; Cold-rolled steel sheet/strip--specifications; Deep drawing steel; Deformation--metals/alloys; Hemisherical deformation punch test; Metal fabrication strain analysis; Metallic steel sheet; Press performance; Quantitative analysis/measurement; Uniaxial tensile test;
ICS Code
ICS Number Code 77.040.20 (Non-destructive testing of metals)
DOI: 10.1520/E2218-02
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