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 horizontal line is then followed to the right. Example of the use of Table 1 Forging grade F for determining the tolerances for length, width, height dimensions of a forging. Learn more about the cookies we use and how to change your settings.
Drop and vertical press forgings Status: Pieces forgees par estampage en acier. In both cases, the permissible deviations shall be wn besides the relative measurements in the drawings of the forgings.
The permissible length of local deviation from the bar stock 01243-1 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 Up to and including 0,16;S3: All variations in thickness, due to die-closure, die-wear and shrinkage are included in the thickness tolerances. They are classified into four groups; accordingly each of them is displayed in the table. Worldwide Standards We can source any standard from anywhere in the world.
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: While grade E close 102243-1 may be applied to all dimensions on one forging, it is more economical to apply them only to those specific dimensions on which closer tolerances are essential.
Examples are shown of circular and em forgings see Figure 2 and Figure 3. These are dimensions which would lead to over definition geometrically, or contradictions when given a tolerance.
The tolerances are determined from Table 3 and Table 4 in accordance wn the greatest thickness dimension of the forging. Please download Chrome or Firefox or view our browser tips.
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.
VanDeusen Wisc B Documents. 1243-1 characteristics of the forging process require that, for any given forging, all tolerances for thickness dimensions are uniform.
BS EN 10243-1:1999
They shall be taken from Table 1 and Table 2. Above 0,32 up to and including 0,63; S1: Residual flash and trimmed flat tolerances are applied independently of, and in addition to, any other tolerances. The tables showing dimensional tolerances are based on the R20 series of preferred numbers see ISO 3. See also Figure Permissible tolerances based on the greatest dimensions are usually obtained from the appropriate table Maximum length: Search all products by.
They apply within the limits stated below unless the purchaser specifies otherwise. This website is best viewed with browser version of up to Microsoft Internet Explorer 8 or Firefox 3. 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. Find Similar Items This 1024-1 falls into the following categories. Ejector mark tolerances are applied independently of, and in addition to, any other tolerances.
By further movement to the right, the correct tolerance is found under the appropriate vertical column heading for the 10243- concerned wherever possible the greatest dimension of length, width or height see 10423-1.
BS EN – Steel die forgings. Tolerances on dimensions. Drop and vertical press forgings
Amendments issued since publicationAmd. 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 M1, the same horizontal line is followed further to the right. This approach will ensure that optimum use is made of the forging process in fulfilling the purchaser’s special requirements at the lowest additional cost.
The nominal diameter and the location of ejector marks will be indicated to the purchaser on the forging drawing before the commencement of production. Requirements for carbon, carbon manganese and alloy hot worked or cold finished steels.
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 European Standard does not apply to upset forgings made on horizontal forging machines see EN On forged surfaces which are to be machined subsequently, scale pits and surface dressing shall be permitted, but the maximum depth shall be such that at least one-half of the nominal machining allowance remains.