1、November 2006 Translation by DIN-Sprachendienst.English price group 8No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).IC
2、S 25.100.30!$xl4“1857317www.din.deDDIN 340Parallel shank twist drills, long seriesEnglish translation of DIN 340:2006-11Lange Spiralbohrer mit ZylinderschaftEnglische bersetzung von DIN 340:2006-11Forets queue cylindrique, srie longueTraduction anglaise de DIN 340:2006-11SupersedesDIN 340:1978-03www
3、.beuth.deDocument comprises 9 pagesIn case of doubt, the German-language original shall be considered authoritative.03.12 DIN 340:2006-11 2 A comma is used as the decimal marker. Contents Page Foreword . 3 1 Scope . 3 2 Normative references . 3 3 Dimensions, designation . 4 4 Material 7 5 Design 7 6
4、 Marking 7 Annex A (informative) Explanatory notes 8 Bibliography . 9 DIN 340:2006-11 3 Foreword This standard has been prepared by Working Committee NA 121-02-01 AA Spiralbohrer aus Schnellarbeitsstahl (fr Metall) of the Normenausschuss Werkzeuge und Spannzeuge (FWS) (Tools and Clamping Devices Sta
5、ndards Committee). See Annex A for connection with International Standard ISO 494:1975 published by the International Organization for Standardization (ISO). Amendments This standard differs from DIN 340:1978-03 as follows: a) the Scope is now included; b) tolerances for l1and l2have been brought in
6、 line with DIN 1414-1; c) the Bibliography and Explanatory notes have been updated; d) the standard has been editorially revised. Previous editions DIN 339: 1923-03 DIN 340: 1923-03, 1951x-08, 1961-10, 1966-09, 1969-05, 1978-03 1 Scope This standard specifies dimensions for and the designation of pa
7、rallel shank twist drills, long series. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendme
8、nts) applies. DIN 1414-1, Technical delivery conditions for twist drills of high-speed steel Part 1: Requirements DIN 1809, Driving tenons for tools with parallel shank DIN 1836, Groups of tool application for chip removal DIN 340:2006-11 4 3 Dimensions, designation The twist drills do not need to b
9、e designed as shown here; they only need to have the specified dimensions, see also DIN 1414-1. See DIN 1414-1 for tolerances for l1and l2. aRecess optional Figure 1 Designation of a parallel shank twist drill, long series, with a diameter d = 6 mm, tool application group N as in DIN 1836, made of h
10、igh-speed steel, code HSS: Drill DIN 340 6 HSS Further examples of designations are given in DIN 1414-1. DIN 340:2006-11 5 Table 1 Dimensions in millimetres Dimensions in millimetres d l1l2d l1l2h8 h8 Diameter rangeaDiameter rangeaover up to over up to 1 0,95 1,06 56 33 5,4 5,3 6 139 91 1,1 1,06 1,1
11、8 60 37 5,5 1,2 1,18 1,32 65 41 5,6 1,3 5,7 1,4 1,32 1,5 70 45 5,8 1,5 5,9 1,6 1,5 1,7 76 50 6 1,7 6,1 6 6,7 148 97 1,8 1,7 1,9 80 53 6,2 1,9 6,3 2 1,9 2,12 85 56 6,4 2,1 6,5 2,2 2,12 2,36 90 59 6,6 2,3 6,7 2,4 2,36 2,65 95 62 6,8 6,7 7,5 156 102 2,5 6,9 2,6 7 2,7 2,65 3 100 66 7,1 2,8 7,2 2,9 7,3 3
12、 7,4 3,1 3 3,35 106 69 7,5 3,2 7,6 7,5 8,5 165 109 3,3 7,7 3,4 3,35 3,75 112 73 7,8 3,5 7,9 3,6 8 3,7 8,1 3,8 3,75 4,25 119 78 8,2 3,9 8,3 4 8,4 4,1 8,5 4,2 8,6 8,5 9,5 175 115 4,3 4,25 4,75 126 82 8,7 4,4 8,8 4,5 8,9 4,6 9 4,7 9,1 4,8 4,75 5,3 132 87 9,2 4,9 9,3 5 9,4 5,1 9,5 5,2 5,3 DIN 340:2006-1
13、1 6 Table 1 (continued) Dimensions in millimetres Dimensions in millimetres d l1l2d l1l2h8 h8 Diameter rangeaDiameter rangeaover up to over up to 9,6 9,5 10,6 184 121 13,3 13,2 14 214 140 9,7 13,4 9,8 13,5 9,9 13,6 10 13,7 10,1 13,8 10,2 13,9 10,3 14 10,4 14,25 14 15 220 144 10,5 14,5 10,6 14,75 10,
14、7 10,6 11,8 195 128 15 10,8 15,25 15 16 227 149 10,9 15,5 11 15,75 11,1 16 11,2 16,25 16 17 235 154 11,3 16,5 11,4 16,75 11,5 17 11,6 17,25 17 18 241 158 11,7 17,5 11,8 17,75 11,9 11,8 13,2 205 134 18 12 18,25 18 19 247 162 12,1 18,5 12,2 18,75 12,3 19 12,4 19,25 19 20 254 166 12,5 19,5 12,6 19,75 1
15、2,7 20 12,8 aThe diameter ranges give the lengths l1and l2for drills with intermediate diameters, which can be ordered in accordance with this standard. 12,9 13 13,1 13,2 DIN 340:2006-11 7 4 Material As in DIN 1414-1. 5 Design Parallel shank twist drills, long series, with diameters greater than 3 m
16、m can also be made with driving tenon as in DIN 1809. In this case, the designation reads, for example: Drill DIN 340 6 ML HSS Other designs shall be as in DIN 1414-1. 6 Marking As in DIN 1414-1. DIN 340:2006-11 8 Annex A (informative) Explanatory notes The dimensions specified in this standard are
17、in accordance with the International Standard published by the International Organization for Standardization (ISO) ISO 494:19751)en: Parallel shank twist drills Long series fr: Forets queue cylindrique Srie longue de: Lange Spiralbohrer mit Zylinderschaft Clause 3.1 is partially identical. Internat
18、ional Standard ISO 494:1975 also covers long twist drills with diameters up to 31,5 mm, differentiated in steps of one-fourth millimetre, with the dimensions shown in Table A.1. Table A.1 Total lengths l1and cutting lengths l2for twist drills having a diameter d over 20,0 mm up to 31,5 mm Diameter r
19、ange l1l2over up to 20 21,2 261 171 21,2 22,4 268 176 22,4 23,6 275 180 23,6 25 282 185 25 26,5 290 190 26,5 28 298 195 28 30 307 201 30 31,5 316 207 Twist drills having a diameter greater than 20 mm have not been included in DIN 340 because they are rarely used in practice. These diameters are stan
20、dardized in: DIN 341, Morse taper shank twist drills for use in jig bushes, long series DIN 345, Morse taper shank twist drills DIN 346, Morse taper shank twist drills, oversize shank 1) ISO Standards are obtainable in English and French from: Beuth Verlag GmbH (AuslandsNormen-Service), 10772 Berlin
21、 (Street address: Burggrafenstrae 6, 10787 Berlin). DIN 340:2006-11 9 Bibliography DIN 338, Parallel shank twist drills, jobber series DIN 339, Parallel shank twist drills for use in jig bushes DIN 341, Morse taper shank twist drills for use in jig bushes, long series DIN 345, Morse taper shank twis
22、t drills DIN 346, Morse taper shank twist drills, oversize shank DIN 1414-2, Technical delivery conditions for twist drills of high-speed steel Part 2: Testing DIN 1869, Parallel shank twist drills, extra long series DIN 1870, Morse taper shank twist drills, extra long series DIN 1897, Parallel shan
23、k twist drills, stub series DIN 4000-81, Tabular layouts of properties Part 81: Drills and countersinking tools with non-indexable cutting edges DIN 6581, Terminology of chip removing Reference systems and angles on the cutting part of the tool DIN 8037, Parallel shank twist drills with carbide tips
24、 for drilling metal DIN 8038, Parallel shank twist drills with carbide tips for drilling plastics DIN 8041, Morse taper shank twist drills with carbide tips for drilling metal DIN ISO 5419, Twist drills Terms, definitions and types DIN ISO 11054, Cutting tools Designation of high speed steel groups
