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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For undated references the latest edition of the publication referred to applies. 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.
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 All variations in thickness, due to die-closure, die-wear and shrinkage are included in the thickness tolerances. A version in any other language 10423-1 by translation under the responsibility of a CEN member into its enn language and notified to the Central Secretariat has the English versionSteel die forgings Tolerances on dimensions Part 1: Centre-to-centre tolerances shall be applied independently of, and in addition to, any other tolerances.
The first part sn this European Standard applies to hot forgings in the delivery condition, made in carbon and alloy steels.
They are classified into four groups; accordingly each of them is displayed in the table. If the category of steel used is M1, the same horizontal line is followed further to the right. Pieces forgees par estampage en acier. Please download Chrome or Firefox or view our browser tips.
BS EN – Steel die forgings. Tolerances on dimensions. Drop and vertical press forgings
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 12043-1 or punching. Customers who bought this product also bought BS EN The tolerance grade and tolerances given on the drawings are examples only and should not be regarded as either mandatory, recommended or minimum requirements since in practice the tolerances will depend on both the capability of the forging equipment and the requirements of the purchaser.
Click to learn more. For centre-to-centre dimensions greater than 1 mm length, tolerances eb Table 1 or 102243-1 2, with equal plus or minus dispersions, shall be applied. Above 0,16 up to and including 0,32; S2: The faster, easier way to work with standards. The tables showing 102431 tolerances are based on the R20 series of preferred numbers see ISO 3.
From Table 1 the tolerances see Figure 20 are found to be: Where any special tolerances are applicable they are indicated in the example by a small solid black circle alongside the tolerance.
Considerations of this nature, whilst frequently encountered, are highly individual, and vary widely. Users are responsible for its correct application.
This should be done to obviate unnecessary minor variations between tolerances, thus facilitating drawing preparation and simplifying inspection procedures. The tolerances are determined from Table 3 and Table 4 in accordance with the greatest thickness dimension of the forging. The location of burrs shall be indicated to the purchaser on 1024-31 forging drawing for approval before the commencement of production.
In such cases these standard tolerances can form only a basis on which to agree modifications appropriate to the particular circumstances. 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 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.
Tolerances for fillet radii and edge radii are shown in Table rn and examples of such radii are shown in 1243-1 Tolerances for the maximum permissible extent of such distortion ej based on the nominal diameter of the unforged stock in accordance with Table 6 and Figure To avoid extra expense, it is essential that all the dimensions be admitted into forging grade F. All forgings bear the CDP identification mark, unless a different 1 Documents. VanDeusen Wisc B Documents.
Straightness and flatness tolerances are applied independently of, and in addition to, any other tolerances. 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. Lou Pingeot Dangerous Partnership – Sie?
Also, the deviations of form do not include scale pits and depth of surface dressing see 5. This European Standard does not apply to upset forgings made on horizontal forging machines see EN Flatness tolerances relate to deviations of surfaces from the specified contour.
To determine length, width and height tolerances, reference is first made to the appropriate category in the mass column. Find Similar Items This product falls into the following categories. On forged surfaces which are not machined subsequently, scale pits and surface eh shall be permitted to a depth equal to one-third of the total value of the thickness tolerance.