Dazragore Metallic materials — Impact test. If this mechanism also includes a braking system, means shall be provided to prevent the brake being applied accidentally. In each case, the greater value is permitted. English version Metallic materials — Charpy impact test — Part 1: BS EN Charpy i NOTE For machines in which the hammer opening permits a play of at least 13 mm between the end of the test piece placed ready for the test and the safety stops, requirements a and d do not apply.
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Dougal Email addresses can only contain letters, numbers and the following special characters: This standard has been updated see copyright date and have had amendments incorporated. We need your help to maintenance this website. The recommended ratios are either 1: The deformation rate is a function of the pendulum impact speed; for a pendulum impact testing machine, the speed decreases as the fracture progresses.
If standard test pieces cannot be obtained from the material, a reduced dn test piece, with a width of 7,5 mm or 5 mm see Table 2 shall be used, the notch being cut in one of the narrow faces.
The apparatus used for the direct method shall have a certified traceability relative to the SI system of units. The test pieces shall be machined all over, except in the case of precision cast foundry test pieces in which the two faces parallel to the plane of symmetry of the notch can be unmachined.
NOTE l2 may be equal to e. EN The striking edge shall be e contact with the test piece along the whole width of the test piece. To do this, lift the pendulum driving the indicator in the rise direction until the indicator is on the graduation to be verified. If more than 2 energy levels are verified, the additional levels shall be uniformly distributed in the range of application and as a function of the available reference test pieces.
The test piece shall lie on the supports in such a way that the tip of the striker hits the side opposite the notch of the test piece see Figure 2. The reference test pieces shall be used in accordance with the instructions given by the supplier. Verification of pendulum impact testing machines. This standard is also applicable to pendulum impact machines of different capacities or different design.
Two types of notch are specified. When a pendulum hammer strikes a blow in a horizontal line passing through the centre of percussion, there shall be no eb action on the axis of rotation see Figure 2 3. The direct method shall be used, firstly, when the machine is being installed or repaired and, secondly, if the indirect method gives an incorrect result see 8.
Please copy and paste this embed script to where you want to embed Embed Script. An amendment to BS will be published simultaneously with this standard. Method of test; e Part 2: The anvils shall lie in one and the same plane; the distance between the two planes shall never exceed 0,1 mm. Indirect verification shall be carried for a least two levels of energy within the range of application of the testing machine and for which Charpy V reference test pieces exist.
This standard is also applicable to reference pendulum impact eh machines, the geometrical characteristics of which are defined in Annex B. Table 1 — Designations Reference see Figure 1 and Figure 2 Designation Unit 1 2 3 4 5 6 7 8 9 10 11 12 — Length of test piece Height of test piece Width of test piece Height below notch Angle of notch Radius of curvature of base of notch Distance between anvils Radius of anvils Angle of taper of each anvil Angle of taper of striker Radius of curvature of striker Width of striker Energy absorbed by breakage KU or KV mm mm mm mm Degree mm mm mm Degree Degree mm mm Joule 6 Testing machine 6.
NOTE It should be remembered that the accuracy of the absorbed energy reading varies inversely to Av and this is important when Av is small in comparison with Ap. BS EN NOTE This may be done, for example, by placing a container of water on the machine framework and checking that there are no ripples on the surface of the water. The plane of the anvils is perpendicular to the e of the supports see Figure 1. The total absorbed energy consists of: How can we help you?
This shall be certified by the manufacturer of the machine. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision.
You may experience issues viewing this site in Internet Explorer 9, 10 or Dn the C-shaped hammers, the broken parts of test piece will not rebound onto the hammer if the play at each end of the test piece exceeds 13 mm. The resolution r of the indicator is obtained from the ratio of the pointer thickness and the minimum distance between the centres of two adjacent graduation marks.
Your basket is empty. Ministry of Defence Society of British Aerospace Companies Limited Welding Institute The following bodies were also represented in the drafting of the standard, through subcommittees and panels: The machine includes a motorized return of the hammer to the release point to eliminate any operator lifting of the hammer preventing injury.
The width of the scale graduation marks shall be uniform and the width of the pointer shall be approximately equal to the width of one graduation mark. TOP Related Articles.
BS EN 10045-1:1990
Dougal Email addresses can only contain letters, numbers and the following special characters: This standard has been updated see copyright date and have had amendments incorporated. We need your help to maintenance this website. The recommended ratios are either 1: The deformation rate is a function of the pendulum impact speed; for a pendulum impact testing machine, the speed decreases as the fracture progresses. If standard test pieces cannot be obtained from the material, a reduced dn test piece, with a width of 7,5 mm or 5 mm see Table 2 shall be used, the notch being cut in one of the narrow faces. The apparatus used for the direct method shall have a certified traceability relative to the SI system of units. The test pieces shall be machined all over, except in the case of precision cast foundry test pieces in which the two faces parallel to the plane of symmetry of the notch can be unmachined.
BS EN 10025-2:2019 - TC
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EN 10045-2 PDF
The test report shall state that the test piece was not broken by x J. A British Standard does not purport to include all the necessary provisions of a contract. EN Contents Brief history Foreword 1 Object and field of application 2 References 3 Principle 4 Designations 5 Test pieces 6 Testing machine 7 Test requirements 8 Test report Annex A List of national standards corresponding to the reference European Standard in preparation Figure 1 — Charpy impact test Figure 2 — Configuration of test piece supports and anvils Table 1 — Designations Table 2 — Tolerances on specified test piece dimensions Table 3 — Characteristics of testing machine Table 4 — National standards corresponding to proposed European Standard Page 2 2 3 3 3 3 3 3 5 5 8 6 7 3 4 5 8 Foreword The standard EN 10 concerns metallic materials — Charpy impact test and comprises the following parts: The anvils shall lie in one and the same plane; the distance between the two planes shall never exceed 0,1 mm. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN Central Secretariat or to any CEN member. The energy absorbed is equal to: This value shall be indicated on the documentation provided by the manufacturer; b verification that the pendulum impact testing machine is not subject to any external vibration transmitted by the foundation.
BS EN 10045-2:1993