ASTM E643 Standard Test Method for Ball Punch Deformation of Metallic Sheet Material
ASTM E643 outlines a comprehensive procedure for performing the ball punch deformation test on metallic sheet materials intended for forming applications. It is applicable to specimens with thicknesses ranging from 0.008 to 0.080 inches (0.20 to 2.00 mm). The test evaluates the formability of these materials, particularly focusing on biaxial stretching deformation, which is a prevalent mode of deformation in various forming processes.
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ASTM E643 Introduction
The ball-punch deformation test is extensively utilized to assess and compare the formability of metallic sheet materials. During the ASTM E643 test, biaxial stretching is the primary mode of deformation, making the results particularly relevant for materials primarily formed through stretching processes. MaTestLab is one of the best testing service providers, with the best network of testing laboratories in the USA to carry out ASTM E643 tests for our clients. Establishing precise correlations between the cup height, as determined by this test, and the formability of sheet materials in actual production conditions remains a challenge.
ASTM E643 Test Method
Lubrication and Specimen Preparation
Commercially available petroleum jelly serves as the sole lubricant in this process. It maintains the material’s original surface characteristics, both mechanically and chemically. Lubrication is exclusively applied to the punch, with a thin layer of petroleum jelly being sufficient.
Penetration
The penetrator should move at a speed ranging from 0.2 to 1.0 inches per minute. The ASTM E643 test begins when the penetrator makes contact with the specimen, starting from a zero-displacement indication. The endpoint is determined based on the test results.
E643 Equipment and Sample Preparation
Specimen Detail
Deforming a ball punch is a common method for evaluating the formability of metallic sheet materials.
Specimen Size
Specimen blanks should be circular with a diameter of 3.5 inches or rectangular with a width of 90 mm.
E643 Test Result and Interpretation
The ball punch deformation test is commonly used to assess the formability of metallic sheet materials, particularly in biaxial stretching scenarios. However, precise correlations between test results and actual production formability have not been firmly established. Variations in cup heights among specimens may occur due to factors like hold-down force, lubrication, and endpoint determination method, affecting result interpretation.
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Tests Related to ASTM E643
ASTM E643 is related to tests, including ASTM E177, which defines precision and bias in ASTM test methods, and ASTM E691, which determines a test’s precision.
Use of E643 in Various Industries
It is essential for the automotive, aerospace, and manufacturing industries for metal forming and fabrication. It checks sheet metal for body panels, determines the applicability of metals in high-stress use, and ensures that high-precision parts meet quality, failure criteria, and durability standards.
Materials Commonly Tested with E643
It evaluates the resistance to localized deformation in metallic sheets including aluminum, steel, stainless steel, copper, and titanium alloys. It finds applications in very high-strength applications such as car bodywork or aircraft fuselage and can even be used to investigate surface modification effects.
Importance of E643
The standard is an important test used to measure formability in metallic materials, thereby offering structural integrity and performance across industries such as aerospace and automotive engineering. This helps manufacturers choose the right material, decreases defects, and improves product quality.
You can share your astm e643 testing requirements with MaTestLab. MaTestLab has a vast network of material testing laboratories, spread across the USA and Canada. We support your all material testing needs ranging from specific astm e643 test to various testing techniques.
How much do I need to pay for the astm e643 test?
Please contact us for a detailed quote for your astm e643 testing needs. Cost incurred to carry out different astm e643 testing methodology depends on the type of raw material; number of samples, coupons, or specimens; test conditions, turn around time etc. Costs of some ASTM testing methods start from $100 and the final value depends upon the factors listed above. Please contact us for the best and latest prices.
How many samples are required for astm e643?
The required number of samples or specimens should comply with the procedure given in the astm e643 standard. However, the MaTestLab operations team can assist you for your special requirements once you share your testing details with us.
How much discount can I get on the astm e643 test?
MaTestLab has a vast testing laboratory network, hence we bring you the best testing facilities in a cost-effective way. We offer considerable discounts (15-20%) to our returning customers based on test volume and frequency.
How many days will it take to complete the astm e643 test?
The turnaround time for astm e643 test methodology depends upon the test procedure mentioned in the standard test document. However, we at MaTestLab understand your research requirements and hence try to get your test completed within the least possible time.
Where can I get the astm e643 tested?
You can share your astm e643 testing requirements with MaTestLab. MaTestLab has a vast network of material testing laboratories, spread across the USA and Canada. We support your all material testing needs ranging from specific astm e643 test to various testing techniques.
MaTestLab Inc. offers accessible, quick, and affordable material testing, product testing, and failure analysis services. We support your on-demand testing and expert consultation needs with the help of our extensive network of material testing laboratories situated in the US and other parts of the world.
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