EN 10243-1 PDF
DIN EN – Free download as PDF File .pdf), Text File .txt) or read online for free. 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.
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The location of burrs shall be 10243–1 to the purchaser on the forging drawing for approval before the commencement of production. They are best dealt with by consultation at the design stage and shall be agreed between the purchaser and the supplier. 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 1024-1 employing the category of steel used M1 and shape complexity factor S1.
BS EN – Steel die forgings. Tolerances on dimensions. Drop and vertical press forgings
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. See us on booth at NPE Documents. All variations in thickness, due to die-closure, die-wear and shrinkage are included in the thickness tolerances.
Base all thickness tolerances except those for overall thickness on dimension t shown above. All forgings bear the CDP identification mark, unless a different 1 Documents. Annex A gives for information some examples of the application of these tolerances for different types of closed die forgings.
In such cases it can be arranged by negotiation between the purchaser and the supplier that the entire tolerance is shown as a positive one. Up to and including 0,16;S3: The first part of this European Standard applies to hot forgings in the delivery condition, made in carbon and alloy steels. Figure 16 Dimensions to which centre-to-centre tolerances are not applicable other than by negotiation Figure 17 Fillet and edge radii16 BSI 12 January Burr tolerances are applied independently of, and in addition to, any other tolerances.
C 45Category of steel used see 4. The faster, easier way to work with standards.
BS EN 10243-1:1999
The tolerances specified apply to forgings not eb kg in mass or 2 mm maximum dimension. In such cases, special tolerances shall be negotiated with the purchaser before the commencement of production.
All variations, including those due to die wear and shrinkage, are included in the length, width and height tolerances. The shape complexity factor of a forging is the ratio of the mass of the forging to the mass1 of the enveloping shape necessary to accommodate the maximum dimensions of the forging: This grade should not be specified unless the additional forging cost entailed can be justified by a consequent saving in overall cost.
The permissible length of local deviation from the bar stock diameter or section adjoining a forged portion shall be up to 1,5 times the bar stock diameter or largest cross-sectional dimension, but with a maximum value of mm see Figure Ejector mark tolerances are applied independently of, and enn addition to, any other tolerances.
If the category of steel used is M1, the same horizontal line is followed further to the right. They are classified into four groups; accordingly each of them is displayed in the table.
The positive residual flash and negative trimmed flash values permitted are given in Table 1 and Table 2. Straightness and flatness ne are to be found from Table 5 according to the greatest length or greatest width dimension of the forging.
A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the English versionSteel die forgings Tolerances on dimensions Part 1: Customers who bought this product also bought BS EN Mismatch tolerances are 110243-1 independently of any other tolerances.
Lou Pingeot Dangerous Partnership – Sie? Where any special tolerances are applicable they are indicated in the example by a small solid black circle alongside the tolerance.
Above 0,16 up to and including 0,32; S2: For dated references, subsequent amendments to or revisions of any of these publications apply to this European 1043-1 only when incorporated in it by amendment or revision.
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. Formula for calculating mismatch: When no tolerance is indicated against the dimension concerned, the tolerance for the maximum length or width of the forging shall be applied from Table 1 or Table 2but the dispersion will be plus and minus one-half of the total tolerance, and not as shown in the tables.
Figure 6 Type of dimensions10 BSI 12 January 102433-1 and width tolerances are to be applied in directions parallel to the main 102431- line, or as nearly so as practical considerations will permit.
The tolerances are determined from Table 3 and Table 4 in accordance with the greatest thickness dimension of the forging. Eccentricity tolerances for deep holes shall be applied in addition to the normal tolerances for mismatch see Figure For undated references the latest edition of the publication referred to applies. Where restrictions in deviations of form have been agreed, these will be to ISO and noted on the drawing.
The BSI copyright notice displayed in this document indicates when the document was last issued. Requirements for carbon, carbon manganese and alloy hot worked or cold finished steels.
In the latter case the tolerances shall be indicated against the appropriate dimension on the forging drawing. 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.
Only tolerances to grade F shall be applied. Compliance with a British Standard does not of itself confer immunity from legal obligations. Examples are shown of circular and non-circular forgings see Figure 2 and Figure 3.
Reference dimensions included in the examples are given in brackets. Worldwide Standards We can source any standard from anywhere in the world.
They are not used for check measurements on the actual forging, but for tool construction when forging dimensions are not measurable.
Tolerances for fillet and edge radii shown in Table 6 are applicable to both grade E and enn F. 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 height shall apply wherever possible.
Published on Jul View Download From Table 1 the tolerances see Figure 20 are found to be: By further movement to the right, the correct tolerance is found under fn appropriate vertical column heading for the dimension concerned wherever possible the greatest dimension of length, width or height see 5.
See also Figure