DIN EN 10243-1 PDF

Find the most up-to-date version of DIN EN at Engineering Buy DIN EN STEEL DIE FORGINGS – TOLERANCES ON DIMENSIONS – PART 1: DROP AND VERTICAL PRESS FORGINGS. Standard DIN EN Steel die forgings – Tolerances on dimensions – Part 1: Drop and vertical press forgings; German version EN.

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Normally the tolerances for the dln dimension of length or diameter of the forging will be applied but, if more restrictive tolerances are required, those for the specific dimension of the pierced hole may be used.

DIN EN 10243-1

Length, width and height tolerances are shown in Fin 1 and Table 2 as applied to dimensions between external surfaces see Figure 7i. Published on Jul View Download This publication does not purport to include all the necessary provisions of a contract.

Tolerances for heavier or larger forgings shall be agreed at the time of enquiry and order. Straightness and flatness tolerances are to be found from Table 5 according to 102431- greatest length or greatest width dimension of the forging. For centre-to-centre dimensions greater than 1 mm length, tolerances from Table 1 or Table 2, with equal plus or minus dispersions, shall be applied.

The tolerances are determined from Table 3 and Table 4 in accordance with the greatest thickness dimension of the forging. Such special tolerances shall be agreed between the supplier and the purchaser before the commencement of production. As a general rule grade F tolerances result in a cheaper forged component. Above 0,16 up to and including 0,32; S2: Annex A gives for information some examples of the application of these tolerances for different types of closed die forgings.

Example of the use of Table 1 Forging grade F for determining the tolerances for length, width, height dimensions of a forging. Above 0,63 up to and including 1.

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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. Where any special tolerances are applicable they are indicated in the example by a small solid black circle alongside eb tolerance. The cost of the forged part can be higher if grade E tolerances are selected, but the need for subsequent machining operations can often be reduced.

DIN EN – Free Download PDF

When tolerances for sheared ends are required, this will be indicated to the purchaser on the forging drawing before the commencement of production. Such special tolerances should be negotiated between the purchaser and the supplier in accordance with 1.

Dimensional checks regarding depth of scale pits or any other point in question should be made in relation to the machining locations. Tolerances for the maximum permissible extent of such distortion are based on the nominal diameter of the unforged stock in accordance with Table 6 and Figure Lou Pingeot Dangerous Partnership – Sie?

These marks may be either sunken or raised. They are not used for check measurements on the actual forging, but for tool construction when forging dimensions are not measurable. In such cases these standard tolerances can form only a basis on which to agree modifications appropriate to the particular circumstances. 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.

For undated references the latest edition of the publication referred to applies. They are classified into four groups; accordingly each of them is displayed in the table. The minus tolerances do not apply to edge radii up to and including 3 mm when such radii are affected by subsequent removal of draft by trimming or punching.

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Where more restrictive tolerances are required for application to individual dimensions of thickness, supplementary operations are involved. VanDeusen Wisc B Dinn. Drop and vertical press forgingsrgees par estampage en acier es dimensionnelles Pieces executees a chaud sur x-pilons ou presses verticalesGesenkschmiedeteile aus Stahl MatoTeil 1: The tables showing dimensional tolerances are based on the R20 series of preferred numbers see ISO 3.

EN 10243-1.pdf

To determine length, width and height tolerances, reference is first made to 10243–1 appropriate category in the mass column. Users are responsible for its correct application. The BSI copyright notice displayed in this document indicates when the document was last issued. The supplier will draw the attention of the purchaser to such instances and it will be necessary to enn greater tolerances on the draft angle surfaces to meet these circumstances.

The total tolerances permitted are shown in Table 3 and Table 4. 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.

Tolerances for fillet radii and edge radii are shown in Table 6 and examples of such radii are shown in Figure Where e in deviations of form have been agreed, these will be to ISO and noted on the drawing. On forged surfaces which are to be machined subsequently, scale pits 10243- surface dressing shall be permitted, but the maximum depth shall be such that at least one-half of the nominal machining allowance remains.

Tolerances for sheared ends are applied independently of, and in addition to, any other tolerances.

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