zielsicher Englisch, Metalltechnik, Schulbuch

Label the three different dimensional tolerances with the three explanations below. deviation limits:  3 general tolerances:  1 ISO-tolerances:  2 tolerance class deviation limit in mm range of nominal sizes in mm 0,5 to 3 over 3 to 6 over 6 to 30 over 30 to 120 over 120 to 400 over 400 to 1000 f fine ± 0,05 ± 0,05 ± 0,1 ± 0,15 ± 0,2 ± 0,3 m medium ± 0,1 ± 0,1 ± 0,2 ± 0,3 ± 0,5 ± 0,8 c rough ± 0,2 ± 0,3 ± 0,5 ± 0,8 ± 1,2 ± 2 v very rough – ± 0,5 ± 1 ± 1,5 ± 2,5 ± 4 1 For dimensions without any tolerance specification, the so called “free sizes.” They are divided into a range of nominal sizes and the tolerance classes (fine, medium, rough and very rough). 2 ø20H7 tolerance class (bore) degree of tolerance fundamental deviation tolerance class (shaft) ø20h6 These tolerances indicate the size of the tolerance and their position regarding the zero line in encrypted form, for example H7. The letter indicates the fundamental deviation; the number indicates the tolerance grade. This encryption is the tolerance class. The zero line is the reference line, which corresponds to the nominal size. 3 + 0,2 20 − 0,1 upper deviation deviation limits lower deviation nominal size The designer can choose the tolerances. In the drawing, the deviation limits are behind the nominal size. normal size zero line F G H J K M N f g h j k m n Name the three different tolerances. Dimensional tolerance, form tolerance, tolerance of position Name the three different dimensional tolerances to determine the dimensional deviation of manufacturing dimensions. deviation limits, general tolerances, ISO tolerances Explain the term “zero line”. The zero line is the reference line, which corresponds to the nominal size. Mosaic Calculate: Nominal size: 25 Upper deviation: 0.3 Lower deviation: 0.2 Maximum size limit: 25.3 Minimum size limit: 4.8 Dimensional tolerance: 0.5 04 A2–B1 Word bank dimensional deviation Maßabweichung range of nominal size Nennmaßbereich linear dimensions Längenmaße hole pitches Lochabstand encrypted verschlüsselt zero line Nullinie fundamental deviation Grundabmaß upper deviation oberes Abmaß lower deviation unteres Abmaß dimensional tolerance Maßtoleranz minimum size limit Mindestmaß maximum size limit Höchstmaß 05 A2–B1 06 A2–B1 07 A2–B1 121 Tolerances and fits 23 Nur zu Prüfzwecken – Eigentum des Verlags öbv