EN 10243-1 PDF

Tolerances on dimensions. Drop and vertical press forgings Normally the tolerances for the greatest dimension of length or diameter of forging will be applied but, if more restrictive tolerances are required, those for the specific dimension of the pierced hole may be used. Length, width and height tolerances are shown in Table 1 and Table 2 as applied to dimensions between external surfaces e Figure 7i. Tolerances for fillet and edge radii shown in Table 6 are applicable to both grade E and grade F. If the category of steel used is M1, wn same horizontal line is followed further to the right. From Table 1 the tolerances see Figure 20 are found to be: Also, the deviations of form do not include scale pits and depth of surface dressing see 5.

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Tolerances on dimensions. Drop and vertical press forgings Normally the tolerances for the greatest dimension of length or diameter of forging will be applied but, if more restrictive tolerances are required, those for the specific dimension of the pierced hole may be used.

Length, width and height tolerances are shown in Table 1 and Table 2 as applied to dimensions between external surfaces e Figure 7i. Tolerances for fillet and edge radii shown in Table 6 are applicable to both grade E and grade F.

If the category of steel used is M1, wn same horizontal line is followed further to the right. From Table 1 the tolerances see Figure 20 are found to be: Also, the deviations of form do not include scale pits and depth of surface dressing see 5. For that reason measurements should be made at areas of the forging least affected by die wear.

In measuring mismatch, accuracy depends upon making due allowance for surplus metal caused by uneven die wear. EN The location of burrs shall be indicated to the purchaser on the forging drawing for approval before the commencement of production. Up to and including 0,16;S3: Tolerances for sheared ends are applied independently of, and in addition to, any other tolerances. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by Marchand conflicting national standards shall be withdrawn at the by March They are classified into four groups; each of them is displayed in the table.

Summary of pagesThis document comprises a front cover, an inside front cover, the EN title page, pages 2 to 34, an inside back cover and a back cover. 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.

This European Standard is considered to be a supporting standard to those application and product standards which in themselves support an essential safety requirement of a New Approach Directive and which make reference to this European Standard. To determine the category in which a steel belongs, the maximum permitted content of the elements in the steel specification shall be the values used. Tolerances for the maximum permissible extent of such distortion are based on the nominal diameter of the unforged stock in accordance with Table 6 Figure Figure 6 Type of dimensions10 BSI 12 January Length and width tolerances are to be applied in directions parallel to the main die line, or as nearly so as practical considerations will permit.

The positive residual flash and negative trimmed flash values permitted are given in Table 1 and Table 2. Tolerances for the maximum permissible extent of burr relative to such edges are based on the weight of the forging, in accordance with Table 6 and are applied unless the purchaser specifies otherwise. Pieces executees a chaud sur marteaux-pilons presses verticales Title in German Gesenkschmiedeteile aus Stahl. The total tolerances permitted are shown in Table 3 and Table 4.

The centre-to-centre tolerances provided in this standard apply only when a straight line joining the two centres occurs within the profile the forging see Figure In such cases the factor S4 is used; the weight to be taken into consideration is only that of a cylinder having diameter d and height e.

Click to learn more. They are best dealt with by consultation at the design stage and shall be agreed between the purchaser and the supplier. For dimensions from a centre to a surface see Figure 9 and for dimensions on steps within one die, the tolerances for the greatest length, width and shall apply wherever possible.

The enveloping shape of a circular forging is the circumscribing cylinder, the mass of which is calculated from the formula see Figure 2: When a forging is produced at the extremity of a portion of unforged stock, the length tolerance from any inner face of the forged portion to that extremity shall be determined from Table 1 employing the category of steel used M1 and shape complexity factor S1. Flatness tolerances relate to deviations of surfaces from the specified contour.

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DIN EN 10243-1 PDF

This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pagesThis document comprises a front cover, an inside front cover, the EN title page, pages 2 to 34, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publicationAmd. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member.

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BS EN 10243-1:1999

Brasida The weight of the total length in question shall be calculated as if of unforged stock, irrespective of whether this is the case or not. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, don the latest ej Marchand conflicting national standards shall be withdrawn at the latest by March All forgings bear the CDP identification mark, unless a different 1 Documents. Base all thickness tolerances except those for overall thickness on dimension t shown above. The nominal diameter and the location of ejector marks will be indicated to the purchaser on the forging drawing before the commencement of production. If the category of steel used is M2, the heavy diagonal line is followed downward to the point of intersection with the vertical line M2 and the horizontal line thus met is followed to the right i. In both cases, the permissible deviations shall be mentioned besides the relative measurements in the drawings of the forgings.

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