1、February 2003DEUTSCHE NORM Translation by DIN-Sprachendienst.In case of doubt, the German-language original should be consulted as the authoritative text.English price group 6No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beu
2、th Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 21.160!$Zv(“1558305www.din.deDDIN 2099-1Helical springs made of round wire and rod Part 1: Information to be given in order to obtain the cold formedcompression spring required rinted form AZy
3、lindrische Schraubenfedern aus runden Drhten und Stben Teil 1: Angaben fr kaltgeformte Druckfedern Vordruck ASupersedesDIN 2099-1:2002-11www.beuth.deDocument comprises pages6s p,DIN 2099-1:2003-02 Contents Page Foreword. 3 1 Scope . 3 2 Normative references . 4 3 Designation . 4 4 Application rules.
4、 4 Annex A (normative) Form DIN 2099 A Standard form for supplying information on cold formed helical compression springs5 Bibliography .6 2 DIN 2099-1:2003-02 Foreword This standard has been prepared by Ausschuss Federn (Springs Standards Committee AF) of DIN Deutsches Institut fr Normung e.V. The
5、standard form in Annex A to this standard in which to give information on cold formed helical compression springs is intended to facilitate the processing of enquiries and orders and to avoid misunderstandings. When submitting enquiries or orders for cold formed helical compression springs, it is re
6、commended using the scaled-down version of Form A given in Annex A to this standard. Form A can be ordered from Beuth Verlag GmbH, D-10772 Berlin. Copying the form with the information “according to DIN 2099-1” is permitted. Form A is designed so that it can also be used as a manufacturing drawing.
7、Amendments The following amendments have been made to DIN 2099-1:1973-11: a) The title of the standard has been extended to include the expression “cold formed” compression springs. b) Form A has been revised; Figure 3 has been deleted and some symbols have been replaced by others in international u
8、se according to more recent spring standards. c) The standard has been editorially revised. The following corrections have been made to DIN 2099-1:2002-11: in Figure A.1 Form A, the units given for the stresses 1, 2, n andc have been corrected to N/mm2. Previous editions DIN 2099-1: 1961-09, 1973-11
9、, 2002-11 1 Scope This standard applies without restriction solely to cold formed helical compression springs made from wire and bar. It specifies a form in A4 format according to DIN EN ISO 216 for the information to be supplied on these compression springs. NOTE 1 When designing compression spring
10、s from sectional steel, it shall be noted that non-standardized sections cannot always be supplied. In many cases, however, the square section can be replaced by a circular cross-section. NOTE 2 If compression springs made of sectional steels cannot be avoided in special cases, e.g. for installation
11、 reasons, it is necessary to consult the spring manufacturer. The form can then be completed according to corresponding agreements about design and permissible deviations. 3 DIN 2099-1:2003-02 2 Normative references This standard incorporates by dated or undated reference, provisions from other publ
12、ications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this standard only when incorporated in it by amendment or revision. For u
13、ndated references the latest edition of the publication referred to applies (including amendments). DIN EN ISO 216, Writing paper and certain classes of printed matter Trimmed sizes; A and B series (ISO 216:1975) DIN 2095, Helical springs made of round wire Quality specifications for cold-coiled com
14、pression springs DIN EN 13906-1, Cylindrical helical springs made from round wire and bar Calculation and design Part 1: Compression springs 3 Designation Designation of a form (A) for information on cold formed compression springs: Form DIN 2099 A 4 Application rules It will not always be necessary
15、 to complete the whole scheme provided in the form. Primarily the information required for the specific application of the springs is sufficient. Dimensional values not required for processing can be placed in brackets. No tolerances are given for dimensions in brackets, e.g. the spring rate R. Surf
16、ace markings for ground seatings may be added in the drawing if necessary. If a specific surface quality is required for the seatings, this shall be agreed separately with the manufacturer and entered in Box 13 “Additional information”. The information on material and permissible shear stress (Box 9
17、) and on tolerances (Box 10) depends on the manufacturing method resulting from the size of the springs. For compression springs with a wire or rod diameter from approximately 10 mm to 17 mm, the manufacturing method (hot formed or cold formed) depends on the loading, spring application and material
18、. In order to facilitate efficient production, the maximum possible tolerances according to DIN 2095 shall always be included with the data on outer or inner coil diameter De or Di, nominal free length of the spring L0, spring forces F1to Fn, and deviations e1and e2. The “production compensation” de
19、scribed in DIN 2095 shall be taken into account. If the springs are used in a tube or over a mandrel, the minimum tube diameter Dhor the maximum mandrel diameter Ddshall be indicated on the form. It shall be noted that the coil diameter of the springs increases when they are compressed and even spri
20、ngs with safety against buckling will bulge. 4 DIN 2099-1:2003-02 5 Annex A (normative) Form DIN 2099 A Standard form for supplying information on cold formed helical compression springs Only enter important data and place a cross in the relevant circle. Avoid redundant dimensioning! If necessary, a
21、dd the index k to (see DIN EN 13906-1). For efficient production, select the largest tolerances possible! d = . mm D = . mm eDi= mm D = . mm Dd= . mm Dh= . mm L0= mm L1= . mm L2= . mm Ln= . mm Lc= . mm sh= . mm e1 . mm e2 . mm F1= . N 1= N/mm2 F2= . N 2 N/mm2 = Fn= N n= N/mm2 Fc theo= N c= N/mm2 Var
22、iation of stress between two loads, kh N/mm2 Spring rate R N/mm2 aGive tolerance on Deor Di! Type 1 Spring ends closed Type 2 Spring ends O and ground O closed Tolerances according to DIN 2095 1 Number of active coils n = Total number of coils nt= Quality 1 2 3 2 Direction of coils right-hand O left
23、-hand O De, DiO O O L0O O F1 to FnO O O 3 Deburring of spring ends none O inside O outside O e1, e2O O 4 Deflection of spring (stroke) between two positions sh= mm 10 Wire or rod diameter d depending on semi-finished product used acc. to . O acc. to O acc. to DIN . 5 Frequency of loading f = min111
24、Production compensation provided by: 6 Operating temperature range from to C a) if a spring force and the associated length are specified L0O n and O d 7 Wire or bar surface drawn O rolled O ground with centreless process O spring shot peened O b) if a spring force, the associated length and L0 are
25、specified n and O De, Di8 Surface protection L0,n O and d c) if two spring forces and the associated lengths are specified L0 ,n and O De, Di9 Material according to DIN Permissible shear stress zul= 2mmN (according to DIN EN 13906-1, Figure .) calculated with modulus of elasticity in shear G = 2mmN
26、12 Set length Ls= . mm Set test springs! Supply other springs set O not set O Springs to be supplied not set may be longer than L013 Additional information: Date Name Done Tested Standard Cold formed compression spring Page (Company) (Drawing number) St. Amd. Date Name (orig.) (Repl. for: ) (Repl. b
27、y: ) Figure A.1 Form DIN 2099 A (scaled down) DIN 2099-1:2003-02 6 Bibliography DIN 2077, Spring steel, round, hot rolled Dimensions, permissible deviations on dimension and form DIN 2096-1, Helical compression springs made of round wire and rod Quality requirements for hot formed compression spring
28、s DIN 2096-2, Cylindrical coil compression springs made from round rods Quality requirements for mass production DIN 2097, Helical springs made of round wire Quality specifications for cold formed tension springs DIN 2098-1, Helical springs made of round wire Dimensions for cold formed compression s
29、prings with wire diameter from 0,5 mm upwards DIN 2098-2, Helical springs made of round wire Dimensions for cold formed compression springs with wire diameter of less than 0,5 mm DIN 2099-2, Helical springs made of round wire and rod Part 2: Information to be given in order to obtain the cold formed
30、 tension springs required, printed form B DIN 2099-3, Helical springs made of round wire and rod Part 3: Information to be given in order to obtain the hot formed compression springs required, printed form C DIN 17221, Hot-rolled steels for springs suitable for quenching and tempering Technical deli
31、very conditions DIN EN 10218-2, Steel wire and wire products General Part 2: Wire dimensions and tolerances DIN EN 10270-1, Steel wire for mechanical springs Part 1: Patented cold drawn unalloyed steel wire DIN EN 10270-2, Steel wire for mechanical springs Part 2: Oil hardened and tempered spring steel wire DIN EN 10270-3, Steel wire for mechanical springs Part 3: Stainless spring steel wire DIN EN 12166, Copper and copper alloys Wire for general purposes DIN EN 13906-2, Cylindrical helical springs made from round wire and bar Calculation and design Part 2: Extension springs
