DIN EN CHARPY NOTCHED BAR IMPACT TEST ON METALLIC MATERIALS VERIFICATION OF PENDULUM IMPACT TESTING MACHINES. BS EN Charpy Impact Test on Metallic Materials Part 2: Method for the Verification of Impact Testing Machines. Corresponding national standard in UK Italy Belgium Sweden ISO DIN 51 NFA BS 8?.
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BS EN () – Free Download PDF
When a pendulum hammer strikes a blow in a horizontal line passing through the centre of percussion, there shall be no resultant action on the axis of rotation see Figure 2 3. Verification of pendulum impact testing machines.
EN 10Metallic materials — Charpy impact test — Part 2: Method for the verification of impact testing machines Status: The values of the principal characteristics of the testing machine are specified in Table 3. NOTE One possible method of verification is as follows. EU, Impact testing using V-notch, beam type test piece.
The distance between the striking edge and the bar is measured. Until this European Standard is published reference can be made to the corresponding national or international standards, a list of which is given in annex A. How can we help you? Summary of pages This document comprises a front cover, an inside front cover, pages i 1045-2 ii, the EN title page, pages 2 to 20, an inside back cover and a back cover. 10045-22
BS EN 10045-2:1993
Instead of determining the weight F1 of the pendulum and the distance from its centre of gravity to the eh, it is easier to determine a ej F such that — acting at a known distance l2 from the axis — it has the same moment relative to this axis as the weight of the pendulum.
Friction losses in the bearings and as a result of air-resistance for a half-swing are: You may experience issues viewing this site in Internet Explorer 9, 10 or NOTE It is emphasized that only results on test pieces of identical dimensions should be compared.
Comparison of results, however, is only of significance when made between test pieces of the same form and dimensions.
EN Impact Test_百度文库
This website is best viewed with browser version of up to Microsoft Internet Explorer 8 or Firefox 3. There is no general method for converting the results obtained by one test method into the values which would be obtained by another test method. This pendulum-style machine performs testing to meet the following specifications: For undated references the latest edition of the publication referred to applies. The test piece may be marked on any face not in contact with the supports or anvils and at a point at least 5 mm from the notch to avoid the effects of cold working due to marking.
The machine includes a motorized return of the hammer to the release point to eliminate any operator lifting of the hammer preventing injury. NOTE This may be verified by means of a bar approximately 55 mm long and of rectangular cross-section: Please confirm that you agree with our privacy and cookies policy to submit this form.
ASTM E23, EN 10045-2, ISO 148, GOST 9454-78 Automated Impact Testing of Charpy and Izod Specimens
The pointer shall permit a reading free from parallax. Method of test; — Part 2: This European Standard incorporates by dated and undated reference, provisions from other publications. BS EN Charpy i These losses can be determined by the direction method see 5.
NOTE For machines manufactured after the publication of this standard, it is recommended that the mass of the pedestal of the machine should be at least 12 times the mass of the pendulum. We need your help to maintenance this website. NOTE It should be remembered that the accuracy of 10054-2 absorbed energy reading varies inversely to Av and this is important when Av is small in comparison with Ap. Ej amendment to BS will be published simultaneously with this standard.
Worldwide Standards We can source any standard from anywhere in the world. The requirements for verification of this type of machine are stricter than those for industrial machines see B.