1、ASD STANDARD NORME ASD ASD NORM prEN 4673-001 Edition P 1 December 2009 PUBLISHED BY THE AEROSPACE AND DEFENCE INDUSTRIES ASSOCIATION OF EUROPE - STANDARDIZATIONAvenue de Tervuren, 270 - B-1150 Brussels - Tel. 32 2 775 8126 - Fax. 32 2 775 8131 - www.asd-stan.orgICS: Descriptors: ENGLISH VERSION Aer
2、ospace series Inserts, UNJ threads, self-locking, with self-broaching keys Part 001: Installation and removal procedure Srie arospatiale Douilles filetes, filetage UNJ, freinage interne, clavettes autobrochantes Partie 001 : Procdure dinstallation et dextraction Luft- und Raumfahrt Gewindeeinstze, U
3、NJ-Gewinden, selbstsichernd, mit selbstrumenden Stiften Teil 001: Ein- und Ausbauverfahren This “Aerospace Series“ Prestandard has been drawn up under the responsibility of ASD-STAN (The AeroSpace and Defence Industries Association of Europe - Standardization). It is published for the needs of the E
4、uropean Aerospace Industry. It has been technically approved by the experts of the concerned Domain following member comments. Subsequent to the publication of this Prestandard, the technical content shall not be changed to an extent that interchangeability is affected, physically or functionally, w
5、ithout re-identification of the standard. After examination and review by users and formal agreement of ASD-STAN, it will be submitted as a draft European Standard (prEN) to CEN (European Committee for Standardization) for formal vote and transformation to full European Standard (EN). The CEN nation
6、al members have then to implement the EN at national level by giving the EN the status of a national standard and by withdrawing any national standards conflicting with the EN. Edition approved for publication 15 December 2009 Comments should be sent within six months after the date of publication t
7、o ASD-STAN Mechanical Domain Copyright 2009 by ASD-STAN prEN 4673-001:2009 (E) 2 Contents Page Foreword2 1 Scope 3 2 Normative references 3 3 Insert information 3 4 Inspection requirements before installation.5 5 Installation tools 5 6 Checks of insert position and keys broaching.8 7 Inspection of m
8、inimum self-locking torque 9 8 Insert replacement.9 Foreword This standard was reviewed by the Domain Technical Coordinator of ASD-STANs Mechanical Domain. After inquiries and votes carried out in accordance with the rules of ASD-STAN defined in ASD-STANs General Process Manual, this standard has re
9、ceived approval for Publication. prEN 4673-001:2009 (E) 3 1 Scope This standard specifies the installation and removal procedure (hole profile, tools) of self-locking, self-broaching key, UNJ thread inserts defined by EN standards, for aerospace applications. 2 Normative references The following ref
10、erenced 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 amendments) applies. EN 4673-002, Aerospace series Inserts, UNJ threads, self-locking,
11、with self-broaching keys Part 002: Design standard 1)EN 4673-004, Aerospace series Inserts, UNJ threads, self-locking, with self-broaching keys Part 004: In heat resisting nickel base alloy Ni-P100HT (Inconel 718), silver plating 1)EN 4673-005, Aerospace series Inserts, UNJ threads, self-locking, wi
12、th self-broaching keys Part 005: in heat resisting nickel base alloy Ni-P101HT (WASPALOY), silver plating1)EN 4673-006, Aerospace series Inserts, UNJ threads, self-locking, with self-broaching keys Part 006: in heat resisting steel FE-PA2601 (A286), MoS2coated1)ISO 3161, Aerospace series UNJ threads
13、 General requirements and limit dimensions 3 Insert information Tables 1 to 3 provide the cross reference between the insert codification, the related bolt thread and the tapped hole diameter. 1) Published as ASD-STAN Prestandard at the date of publication of this standard. prEN 4673-001:2009 (E) 4
14、Table 1 Normal size insert Insert reference Bolt thread diametera Tapped hole diametera Tapped hole referencea EN 4673-004-3-0 EN 4673-005-3-0 EN 4673-006-3-0 .190 0-32UNJF .312 5-18UNJC-3B EN 4673-002-3-0 EN 4673-004-4-0 EN 4673-005-4-0 EN 4673-006-4-0 .250 0-28UNJF.375 0-16UNJFC-3B EN 4673-002-4-0
15、 EN 4673-004-5-0 EN 4673-005-5-0 EN 4673-006-5-0 .312 5-24UNJF .437 5-16UNJ-3B EN 4673-002-5-0 EN 4673-004-6-0 EN 4673-005-6-0 EN 4673-006-6-0 .375 0-24UNJF .500 0-16UNJ-3B EN 4673-002-6-0 EN 4673-004-7-0 EN 4673-005-7-0 EN 4673-006-7-0 .437 5-20UNJF .562 5-16UNJ-3B EN 4673-002-7-0 EN 4673-004-8-0 E
16、N 4673-005-8-0 EN 4673-006-8-0 .500 0-20UNJF .625 0-16UNJ-3B EN 4673-002-8-0 aAccording to ISO 3161. Table 2 First repair size insert Insert reference Bolt thread diametera Tapped hole diametera Tapped hole referencea EN 4673-004-3-1 EN 4673-005-3-1 EN 4673-006-3-1 .190 0-32UNJF .375 0-16UNJC-3B EN
17、4673-002-3-1 EN 4673-004-4-1 EN 4673-005-4-1 EN 4673-006-4-1 .250 0-28UNJF.437 5-16UNJ-3B EN 4673-002-4-1 EN 4673-004-5-1 EN 4673-005-5-1 EN 4673-006-5-1 .312 5-24UNJF .500 0-16UNJ-3B EN 4673-002-5-1 EN 4673-004-6-1 EN 4673-005-6-1 EN 4673-006-6-1 .375 0-24UNJF .562 5-16UNJ-3B EN 4673-002-6-1 EN 467
18、3-004-7-1 EN 4673-005-7-1 EN 4673-006-7-1 .437 5-20UNJF .625 0-16UNJ-3B EN 4673-002-7-1 EN 4673-004-8-1 EN 4673-005-8-1 EN 4673-006-8-1 .500 0-20UNJF .687 5-16UNJ-3B EN 4673-002-8-1 aAccording to ISO 3161. prEN 4673-001:2009 (E) 5 Table 3 Second repair size insert Insert reference Bolt thread diamet
19、era Tapped hole diametera Tapped hole referencea EN 4673-004-3-2 EN 4673-005-3-2 EN 4673-006-3-2 .190 0-32UNJF .437 5-16UNJ-3B EN 4673-002-3-2 EN 4673-004-4-2 EN 4673-005-4-2 EN 4673-006-4-2 .250 0-28UNJF.500 0-16UNJ-3B EN 4673-002-4-2 EN 4673-004-5-2 EN 4673-005-5-2 EN 4673-006-5-2 .312 5-24UNJF .5
20、62 5-16UNJ-3B EN 4673-002-5-2 EN 4673-004-6-2 EN 4673-005-6-2 EN 4673-006-6-2 .375 0-24UNJF .625 0-16UNJ-3B EN 4673-002-6-2 EN 4673-004-7-2 EN 4673-005-7-2 EN 4673-006-7-2 .437 5-20UNJF .687 5-16UNJ-3B EN 4673-002-7-2 EN 4673-004-8-2 EN 4673-005-8-2 EN 4673-006-8-2 .500 0-20UNJF .750 0-16UNJF-3B EN
21、4673-002-8-2 aAccording to ISO 3161. 4 Inspection requirements before installation Prior to installation check the installation hole to receive the insert are free from burrs and any foreign objects, grease, oil, etc. Inspect insert to be installed and ensure that it is clean and free from protectiv
22、e grease, etc. 5 Installation tools 5.1 General In order to facilitate the correct assembly of the inserts use the appropriate tools. It is necessary to use one tool by insert reference. The tools and their methods of application described in this standard are not mandatory and show only the basic p
23、rinciples to be observed to achieve the satisfactory installation and subsequent broaching and the satisfactory removal of the inserts. The maximum dimensional requirements provided shall be achieved and on no account shall the design of the tools or their methods of application be such that damage
24、may occur to the threads or the locking zone of the insert or the component into which it is being installed. prEN 4673-001:2009 (E) 6 5.2 Hand installation 5.2.1 Installation tool Figure 1 illustrates a combined tool used for hand screwing and hand broaching and its overall dimensions. Figure 1 a)
25、and Table 4 give the overall dimensions. Key 1 Screwing nose Key 1 Broaching nose for keys setting a) b) c) Figure 1 Table 4 Dimensions in millimetres Insert external thread H L .312 5-18UNJC-3B 12,7 .375 0-16UNJC-3B 14,3 .437 5-16UNJ-3B 15,9 .500 0-16UNJ-3B 17,5 .562 5-16UNJ-3B 19,0 .625 0-16UNJ-3B
26、 20,6 .687 5-16UNJ-3B 22,2 .750 0-16UNJF-3B 71 25,4 prEN 4673-001:2009 (E) 7 5.2.2 Procedure a) Lubricate the outer thread of the insert with the lubricant referenced on the assembly drawing. Inserts installed in aluminium or magnesium alloy components shall be lightly smeared externally with a suit
27、able compound to prevent galvanic corrosion if required on the assembly drawing. b) Fit into place and screw the insert by two turns into the component. c) Fit into place the screwing nose of the tool onto the keys, then screw the assembly into the threaded hole until the screwing nose mates the com
28、ponent surface as shown in Figure 1 a). d) Adjust the insert position within the X limits given in Figure 3. e) Turn the tool on the broaching nose side as showed in Figure 1 b). f) Apply a sufficient load in the direction indicated Figure 1c to broach the keys by stamping or by pressing on the tool
29、. The keys are fitted in the proper position corresponding to Y dimension given in Figure 3. g) Remove the tool from the insert. h) Remove excess sealing compound or lubricant if any. 5.3 Air pressure installation 5.3.1 Installation tool Figure 2 illustrates a tool for screwing, broaching and unscre
30、wing assembled on an air pressure gun. The overall dimensions are given in Figure 2. Dimensions in millimetres 24360 2954 7613Key 1 Threaded mandrel 2 Interchangeable installation nose corresponding to the insert reference 3 Gun 4 600 kPa (6 bars) air pressure inlet Figure 2 prEN 4673-001:2009 (E) 8
31、 5.3.2 Procedure The air pressure gun shall be previously adjusted in order to obtain the satisfactory installation of insert and of the keys as given in Figure 3. a) Lubricate the outer thread of the insert with the lubricant referenced on the assembly drawing. Inserts installed in aluminium or mag
32、nesium alloy components shall be lightly smeared externally with a suitable compound to prevent galvanic corrosion if required on the assembly drawing. b) Screw the insert on to the threaded mandrel until it is fully seated on the installation nose. c) Using the tool, screw the insert into the tappe
33、d hole until positioned: The screwing/broaching tool comes into contact with the surface of the component, when operating the air gun. The insert comes in position as shown in Figure 3 below the surface of the casing. d) Use the air gun in the percussion mode to broach the keys. e) Unscrewing is aut
34、omatic to extract the tool from the crimped insert. f) Remove excess sealing compound or lubricant if any. 6 Checks of insert position and keys broaching These checks shall be carried out with an inspection gauge common to all insert dimensions. Check dimensions X and Y which shall be in accordance
35、with Figure 3. After broaching of keys, the component surface shall not show any distortion or cracks. Dimensions in millimetres 12X =0,130,75Y =0,250,75Key 1 Installation depth of the keys 2 Installation depth of the insert Figure 3 prEN 4673-001:2009 (E) 9 7 Inspection of minimum self-locking torq
36、ue The minimum self-locking torque for the installed insert shall conform to Table 5 and shall be checked using a low third pitch diameter passivated stainless steel test bolt (see Table 5). Bolts shall not be lubricated. The test bolts shall be periodically checked for wear and damage, any bolt fal
37、ling outside the tolerances in Table 5 shall not be used for this check. The sample size/frequency for this check shall be at the responsibility of the installer. Table 5 Part number Test bolt pitch diameter Self-locking torque Normal First repair Second repair max. min. min. Associated bolt thread
38、size insert size insert size insert mm mm Nm .190 0-32UNJF EN 4673-004-3-0 EN 4673-005-3-0 EN 4673-006-3-0 EN 4673-004-3-1EN 4673-005-3-1EN 4673-006-3-1 EN 4673-004-3-2EN 4673-005-3-2EN 4673-006-3-2 0,168 0,1674 0,46 .250 0-28UNJF EN 4673-004-4-0 EN 4673-005-4-0 EN 4673-006-4-0 EN 4673-004-4-1EN 467
39、3-005-4-1EN 4673-006-4-1 EN 4673-004-4-2EN 4673-005-4-2EN 4673-006-4-2 0,225 0,2243 0,80 .312 5-24UNJF EN 4673-004-5-0 EN 4673-005-5-0 EN 4673-006-5-0 EN 4673-004-5-1EN 4673-005-5-1EN 4673-006-5-1 EN 4673-004-5-2EN 4673-005-5-2EN 4673-006-5-2 0,284 0,2827 1,46 .375 0-24UNJF EN 4673-004-6-0 EN 4673-0
40、05-6-0 EN 4673-006-6-0 EN 4673-004-6-1EN 4673-005-6-1EN 4673-006-6-1 EN 4673-004-6-2EN 4673-005-6-2EN 4673-006-6-2 0,346 0,3450 2,14 .437 5-20UNJF EN 4673-004-7-0 EN 4673-005-7-0 EN 4673-006-7-0 EN 4673-004-7-1EN 4673-005-7-1EN 4673-006-7-1 EN 4673-004-7-2EN 4673-005-7-2EN 4673-006-7-2 0,403 0,4019
41、3,16 .500 0-20UNJF EN 4673-004-8-0 EN 4673-005-8-0 EN 4673-006-8-0 EN 4673-004-8-1EN 4673-005-8-1EN 4673-006-8-1 EN 4673-004-8-2EN 4673-005-8-2EN 4673-006-8-2 0,465 0,4643 4,06 8 Insert replacement 8.1 Insert removal When repairing, the self-broaching key inserts can be removed as follows: prEN 4673
42、-001:2009 (E) 10 a) Drill using a diameter A drill to depth B as shown in Figure 4 and Table 6 or pilot spot facing cutter. Material may also be ground or milled away locally in the key area as shown in Figure 4, so that keys can be removed. OR Key 1 Drill 2 Mill or grinder Figure 4 b) Deflect the k
43、eys inward to clear the tapped hole as shown in Figure 5. Figure 5 c) Unscrew the insert with the extraction tool as shown in Figure 6. Figure 6 d) After machining, remove the part fragments of the insert using the appropriate tool. prEN 4673-001:2009 (E) 11 Table 6 Dimensions in millimetres Tapped
44、hole A B reference diameter max. max. EN 4673-002-3-0 .312 5-18UNJC-3B 6,3 3,0 EN 4673-002-3-1 EN 4673-002-4-0 .375 0-16UNJC-3B 7,7 3,1 EN 4673-002-3-2 EN 4673-002-4-1 EN 4673-002-5-0 .437 5-16UNJ-3B 9,3 3,4 EN 4673-002-4-2 EN 4673-002-5-1 EN 4673-002-6-0 .500 0-16UNJ-3B 10,9 3,6 EN 4673-002-5-2 EN
45、4673-002-6-1 EN 4673-002-7-0 .562 5-16UNJ-3B 12,5 EN 4673-002-6-2 EN 4673-002-7-1 EN 4673-002-8-0 .625 0-16UNJ-3B 14,1 4,0 EN 4673-002-7-2 EN 4673-002-8-1 .687 5-16UNJ-3B 15,7 4,2 EN 4673-002-8-2 .750 0-16UNJF-3B 17,3 4,5 8.2 Repair 8.2.1 General rules After removal of the insert, check for cleanlin
46、ess of tapped hole and check tapped hole dimensions using a threaded plug gauge. If correct and damage free, it is possible to install a new insert of same part number. Otherwise install a repair size insert (first or second repair as applicable) if the design makes it possible (see EN 4673-002) fol
47、lowing 8.2.2. When installing a new insert, the keys shall not be aligned with the housing of the previous insert keys. The dimensions specified in Figure 3 must be met. 8.2.2 First and second repair size installation First and second repair size part numbers and their installation and removal methods are given: Tables 2 and 3 respectively for first and second repair size part numbers selection. Figure 3 for the under-flushing of the insert and of the keys. See 8 for the replacement of the insert.
