Summary of Contents for LMT FETTE T18F
- Page 1 Operating Manual Tangential Rolling System T18F - T27F www.lmt-fette.com LMT_Bedienungsanleitung_T18F_T27F_e.indd 1 02.08.11 17:40...
- Page 2 +49 41 51 37 97 www.lmt-fette.com Rolling-Hotline +49 41 51 12-391 E-Mail-Hotline teamrollen@lmt-tools.com Contact LMT Fette Werkzeugtechnik GmbH & Co. KG (see Chapter 13 Service Information, page 50) if you have any questions or problems. ■ for ordering spare and wearing parts.
-
Page 3: Table Of Contents
Operating Manual Tangential Rolling System T18F - T27F Table of contents Introduction ................Safety . - Page 4 Operating Manual Tangential Rolling System T18F - T27F The first rolling process ............. . Correcting the distance between the axes .
-
Page 5: Introduction
This will quickly familiarize you with all the features of this tool and help to prevent damage occurring to the tool and machine. Expertise help is also available from LMT Fette at any time (see Chapter 13 Service information). - Page 6 This warning category indicates a potentially hazardous situation which, if not avoided, could result in material damage. NOTICE This symbol appears next to hints containing special information on key functions or special application tips designed to optimize the use of all functions. www.lmt-fette.com LMT_Bedienungsanleitung_T18F_T27F_e.indd 2 02.08.11 17:40...
-
Page 7: Safety
This applies in particular to operat- ing personnel without knowledge of the respective national language or national writing system. For the replacement of spare parts only original LMT Fette spare parts must be ■ used for safety reasons. - Page 8 Any protruding parts must be padded to prevent damage. NOTICE Improper disposal of the used packaging materials can pose a threat to the environment. All materials must be disposed of separately and in accordance with national and local regulations. www.lmt-fette.com LMT_Bedienungsanleitung_T18F_T27F_e.indd 4 02.08.11 17:40...
- Page 9 If the tangential thread rolling head is stored under extreme temperature conditions, there is a risk of injury to personnel from hot or cold surfaces. Do not remove or damage the packaging of the tangential rolling system during storage. www.lmt-fette.com LMT_Bedienungsanleitung_T18F_T27F_e.indd 5 02.08.11 17:40...
- Page 10 Storage temperature min. –10 °C (14 °F) max. +30 °C (86 °F) Relative humidity 60 % ± 5 % www.lmt-fette.com LMT_Bedienungsanleitung_T18F_T27F_e.indd 6 02.08.11 17:40...
-
Page 11: Design And Function
■ Forms ■ Application area/working range LMT Fette tangential thread rolling heads cover a working range of up to 64 mm. The way in which this range is divided is shown in the following table: www.lmt-fette.com LMT_Bedienungsanleitung_T18F_T27F_e.indd 7 02.08.11 17:40... -
Page 12: Materials
On each roll side there is a chamfer of the width of the thread pitch P. The largest theoretical thread length L thus corresponds to the maximum roll width B (see Chap- ter 12.1) minus 2 x thread pitch P (also make sure to note the requirements specified in Chapter 3.5!). www.lmt-fette.com LMT_Bedienungsanleitung_T18F_T27F_e.indd 8 02.08.11 17:40... -
Page 13: Position Of The Thread Run-Out
1.55 · P 2.05 · P In standard cases (lead chamfer angle = 60°) the thread lead b on the roll corresponds to the thread pitch P. The safety distance corresponds to c = 0.5 · P. www.lmt-fette.com LMT_Bedienungsanleitung_T18F_T27F_e.indd 9 02.08.11 17:40... - Page 14 DIN 76-A. The length is then approx. ≈ 3.5 · P. 1 x P 1 x P b + P ≥ c Figure 2: Thread roll at the free end and thread undercut www.lmt-fette.com LMT_Bedienungsanleitung_T18F_T27F_e.indd 10 02.08.11 17:40...
-
Page 15: The Rolling Equipment
Using the following tables and figures check whether the selected rolling head could result in collisions with the machine tool, spindle or workpiece. Figure 4: Width dimensions and shoulder diameter at the tangential rolling head www.lmt-fette.com LMT_Bedienungsanleitung_T18F_T27F_e.indd 11 02.08.11 17:40... - Page 16 Each rolling head size can be used for the complete working range; only the rolls and the setting gauge need to be adapted to the individual work applications. www.lmt-fette.com LMT_Bedienungsanleitung_T18F_T27F_e.indd 12 02.08.11 17:40...
-
Page 17: The Rolling Head Holder
Fette tangential rolling heads on different machine tools. This database is c onstantly updated. If your application is not included, please contact us. A drawing of the working areas in the machine is definitely helpful. Table 4: Holder for machine (excerpt from the Internet) www.lmt-fette.com LMT_Bedienungsanleitung_T18F_T27F_e.indd 13 02.08.11 17:40... -
Page 18: The Thread Rolls
(e. g. from another roll material) instead of thread rolls with a standard design. Contact LMT Fette for more information (see Chapter 13). After the thread rolls have become worn they will need to be replaced with new ones;... -
Page 19: Versions
In the case of tapered threads please specify the standard and the version (“standard” or “short”). If the threads differ from the standard, please inform us of the location of the measuring plane (a). In this case the maximum roll run-out is 1 x pitch. www.lmt-fette.com LMT_Bedienungsanleitung_T18F_T27F_e.indd 15 02.08.11 17:40... - Page 20 Code number (example) T27-100-12A-10BV T27-100-12A-10B T27-100-12AV-10BV If both thread lengths are If both thread lengths are If both thread lengths are identical, then: identical, then: identical, then: T27-100-12ABV T27-100-12AB T27-100-12AVBV www.lmt-fette.com LMT_Bedienungsanleitung_T18F_T27F_e.indd 16 02.08.11 17:40...
-
Page 21: Labeling
. This position is the end point of the transverse stroke (see also Chapter 6.3). Code number (example): LMT Fette T27: Rolling head size 35: Consecutive number... - Page 22 It is a prerequisite that the rolling head size (e. g. T27) and the consecutive number (e. g. 35) of the setting gauge and the thread rolls must be identical in the code number for the gauge to be suitable for the thread rolls. www.lmt-fette.com LMT_Bedienungsanleitung_T18F_T27F_e.indd 18 02.08.11 17:40...
-
Page 23: Assembly And Installation
For this, loosen the set screw (ET-27), pull out the bushing (ET-4) from the hinge. For part numbers with the addition “SP” see the spare parts list Figure 24 on page 48. www.lmt-fette.com LMT_Bedienungsanleitung_T18F_T27F_e.indd 19 02.08.11 17:40... -
Page 24: Inserting The Thread Rolls
1 and 2 on the rolls must be facing towards the outer side of the head. Figure 9: Mounting of rolls To mount the thread rolls, proceed as follows: Apply a light coat of molybdenum sulfide grease (e. g. Molykote) to the thread roll www.lmt-fette.com LMT_Bedienungsanleitung_T18F_T27F_e.indd 20 02.08.11 17:40... -
Page 25: Adjusting The Axial Rolling Clearance
The washer (ET-15) also has to be checked and replaced if excessively worn. ET-13 ET-37 Figure 10: Adjusting the axial clearance For part numbers with the addition “SP” see the spare parts list Figure 24 on page 48. www.lmt-fette.com LMT_Bedienungsanleitung_T18F_T27F_e.indd 21 02.08.11 17:40... -
Page 26: Functional Testing
When the distance between the axes has been adjusted, the set screws (ET-28) must be tightened again. www.lmt-fette.com LMT_Bedienungsanleitung_T18F_T27F_e.indd 22 02.08.11 17:40... -
Page 27: Installation On The Machine Tool
Δd . A change of Δd = 0.01 mm 0.0004 inch leads to an major diameter increased by 0.05 mm 0.002 inch. ∆d ∆d Figure 13: Change of the blank diameter www.lmt-fette.com LMT_Bedienungsanleitung_T18F_T27F_e.indd 23 02.08.11 17:40... -
Page 28: Inserting The Rolling Head Into The Holder
(ET-31-4) through the rolling head holder and through the rolling head on the bush- ing (ET-4) Check whether the rolling head can pivot freely about the holder axis ■ Retighten the set screws (ET-31-12) ■ ET-31 ET-31-4 ET-4 ET-31-12 Figure 14: Setting the rolling head in the holder www.lmt-fette.com LMT_Bedienungsanleitung_T18F_T27F_e.indd 24 02.08.11 17:40... -
Page 29: Adjusting The Pendulum Clearance
(ET-14). Otherwise the stop bolt could slide beyond the edge of the plate. In such a case, select the alternative location holes for the spring- loaded bolt and the stop bolt, which are located further inwards (or further outwards) in the rolling head holder. www.lmt-fette.com LMT_Bedienungsanleitung_T18F_T27F_e.indd 25 02.08.11 17:40... - Page 30 An angle of inclination is achieved by the set screws moving out of their symmetrical position. The pendulum clearance also has to be adjusted to max. e ≈ 0.5 mm 0.02 inch here. ET-30 ET-31-7 Figure 16: Adjusting the pendulum clearance with a spring steel sheet www.lmt-fette.com LMT_Bedienungsanleitung_T18F_T27F_e.indd 26 02.08.11 17:40...
-
Page 31: Coolants And Lubricants
(e. g. using the top turret instead of the lower turret for assembly). www.lmt-fette.com LMT_Bedienungsanleitung_T18F_T27F_e.indd 27 02.08.11 17:40... -
Page 32: Putting Into Operation And Setup
P, the thread length L and the tensile strength of the material. In general, the following applies: the larger the forming operation, the higher the number of workpiece rotations to be selected. Table 7 lists reference values for medium tensile strength materials. www.lmt-fette.com LMT_Bedienungsanleitung_T18F_T27F_e.indd 28 02.08.11 17:40... - Page 33 0.1 … 0.13 The number of workpiece rotations results in the working feed s per rotation or the feed rate f (for A see setting gauge or Internet): · n [mm/U] or f = [mm/min] _____ www.lmt-fette.com LMT_Bedienungsanleitung_T18F_T27F_e.indd 29 02.08.11 17:40...
-
Page 34: Traverse Paths
Insert the setting gauge (2), instead of the tangential rolling head, into the rolling ■ head holder by sliding the setting gauge in the rolling head holder on the bolt (ET-31-4). Clamp the bolt with the set screw (ET-31-12). www.lmt-fette.com LMT_Bedienungsanleitung_T18F_T27F_e.indd 30 02.08.11 17:40... - Page 35 It is essential that the feed motion of the cross slide, after the highest point of the cam ■ has been reached, is limited by a fixed stop. The calculated working feed must be correct. ■ The maximum number of n = 35 must not be exceeded. ■ W max www.lmt-fette.com LMT_Bedienungsanleitung_T18F_T27F_e.indd 31 02.08.11 17:40...
-
Page 36: Tangential Force, Drive Power And Torque
Thread starts on roll Z = 3 > 900 Copper = 2340 · 18 · 1.2 (0.06 · 22 0.82 + 0.46 · 2.5 – 0.1 · 3 + 1)N = 4391.8 N _____________ Brass www.lmt-fette.com LMT_Bedienungsanleitung_T18F_T27F_e.indd 32 02.08.11 17:40... -
Page 37: Rolling Time
0.06 · d · π · (n ) [s] ___________ Dwell time rotations = 60 · (20 + 3)s = 2.17 s ____ oder 0.06 · 14.97 · π · (20 + 3)s = 2.16 s ______________ www.lmt-fette.com LMT_Bedienungsanleitung_T18F_T27F_e.indd 33 02.08.11 17:40... -
Page 38: Special Applications
(2) at the reference plane (3) of the tapered thread. This is located on the workpiece at the distance a from For part numbers with the addition “SP” see the spare parts list Figure 24 on page 48. www.lmt-fette.com LMT_Bedienungsanleitung_T18F_T27F_e.indd 34 02.08.11 17:40... -
Page 39: Knurling And Burnishing
(ET-3). This replaces the missing driving grooves on the knurling/ burnishing rolls. The prerequisite for this is that a standard roll is used and that the rolling head is aligned in an axial direction to the workpiece. www.lmt-fette.com LMT_Bedienungsanleitung_T18F_T27F_e.indd 35 02.08.11 17:40... - Page 40 RAA (knurling with axially parallel grooves), RBL (left-handed knurling), RBR (right- handed knurling), RGE (left-right-handed knurling) und RKE (cross knurling) is ap- proximately calculated from: = d – h [mm] As per DIN 82, Edition 1973 www.lmt-fette.com LMT_Bedienungsanleitung_T18F_T27F_e.indd 36 02.08.11 17:40...
-
Page 41: Thread Rolling On Pipes
≤ 0.65. During the rolling process on pipes the number of workpiece rotations achieved should be less than n = 25. NOTICE In special cases, deviations are possible from the defined adjustment values. www.lmt-fette.com LMT_Bedienungsanleitung_T18F_T27F_e.indd 37 02.08.11 17:40... -
Page 42: The First Rolling Process
Tooth 3 shows an over-formed thread tooth. The tip radius is fully closed. The ■ tooth tip appears completely press-finished. In this case, rolling took place with overpressure. This leads to a significant reduction of the roll tool life. www.lmt-fette.com LMT_Bedienungsanleitung_T18F_T27F_e.indd 38 02.08.11 17:40... -
Page 43: Correcting The Distance Between The Axes
0.08 inch for T27F When the distance between the axes has been corrected, retighten the set ■ screws (28). After adjusting the distance between the axes check whether the set pendulum clear- ance is still sufficient. www.lmt-fette.com LMT_Bedienungsanleitung_T18F_T27F_e.indd 39 02.08.11 17:40... -
Page 44: Correcting The Axis Inclination
Otherwise this may result in damage to the roll or gear unit. ET-25 ET-3 Figure 23: Correcting the axis inclination For part numbers with the addition “SP” see the spare parts list Figure 24 on page 48. www.lmt-fette.com LMT_Bedienungsanleitung_T18F_T27F_e.indd 40 02.08.11 17:40... -
Page 45: Troubleshooting
Workpiece must be machined properly round round Roll axis not parallel to Establish parallelism workpiece axis (see Chapter 8.2) Working stroke of cross Check, correct if necessary slide per workpiece (see Chapter 6.2) rotation too great www.lmt-fette.com LMT_Bedienungsanleitung_T18F_T27F_e.indd 41 02.08.11 17:40... - Page 46 Reduce blank diameter overpressure (see Chapter 8) 6 On short lengths Too much material Increase diameter at start and run-out end of of thread, flowing in direction of workpiece heavily tapered axis profile at start and run-out www.lmt-fette.com LMT_Bedienungsanleitung_T18F_T27F_e.indd 42 02.08.11 17:40...
- Page 47 Cooling and lubrication must be sufficiently available, coolant must be free of chips (see Chapter 5.2.4). Workpiece rotations n too low during rolling operation, resulting in too much of a force ratio, increase n (see Chapter 6.4) www.lmt-fette.com LMT_Bedienungsanleitung_T18F_T27F_e.indd 43 02.08.11 17:40...
-
Page 48: Cleaning, Maintenance And Servicing
0.02 inch from each other for T18 the thickness of a washer is less than ■ 0.45 mm 0.018 inch for T27 the thickness of a washer is less than ■ 0.6 mm 0.024 inch www.lmt-fette.com LMT_Bedienungsanleitung_T18F_T27F_e.indd 44 02.08.11 17:40... -
Page 49: Wear Parts
If there is substantial wear (depth > 0.05 mm 0.002 inch) we recommend that you have the parts replaced or reworked Alternative: send the rolling head to LMT Fette for inspection! 10.3 Wear parts The following parts are main wear parts: Washer (ET-15) ■... -
Page 50: Putting Out Of Operation, Disassembly And Disposal
■ parts are disposed of sorted by material type. Separate iron, nonferrous metals, etc. ■ Greases, oils and any parts or connecting pieces contaminated by these sub- ■ stances have to be disposed of separately. www.lmt-fette.com LMT_Bedienungsanleitung_T18F_T27F_e.indd 46 02.08.11 17:40... -
Page 51: Technical Data
2,3425/3.4251 19.8 0.7795 1.1023 Max. 1.7322 2.4803 Max. See Internet See setting gauge or Internet Rolling head Rolling head holder Rolls (1 set = 2 pieces) 0.45 Total 4.55 10.6 ID number 2407485 2408492 www.lmt-fette.com LMT_Bedienungsanleitung_T18F_T27F_e.indd 47 02.08.11 17:40... -
Page 52: Spare Parts Lists
Tangential Rolling System T18F - T27F 12.2 Spare parts lists When re-ordering rolling heads, spare parts, rolling head holders and thread rolls, please make sure to state the specified description and ID number! Figure 24: Exploded view www.lmt-fette.com LMT_Bedienungsanleitung_T18F_T27F_e.indd 48 02.08.11 17:40... - Page 53 2149269 2149274 Sheet metal gage 2173450 2173469 Threaded pin 2142119 2142119 Locking block 2175329 2175733 Can only be delivered and used in pairs, A only applies to cross slide holder, B only to indexing turret www.lmt-fette.com LMT_Bedienungsanleitung_T18F_T27F_e.indd 49 02.08.11 17:40...
-
Page 54: Service Information
Using the state-of-the-art tools, seminars and product training sessions take place at our head office and at our global subsidiaries and representa- tives. These training sessions are held by our technical customer service and the LMT Academy. For more information, please visit http://www.lmt-tools.com → Downloads →... - Page 55 Extensive guides are available to help you get an overview of our huge product range. Tables and sets of standards, aids, catalogs, brochures and flyers are available for collection at our subsidiaries and representatives. Please request them! LMT Fette in the Internet You can also visit us online at http://www.lmt-tools.com Detailed information on rolling systems can be found at http://www.fette.de/rk/fettekat...
-
Page 56: Quick Guide
9. Determine the number of workpiece rotations and the working feed (Chapter 6.2). 10. Adjust the traverse paths: position 1 with safety distance and rolling position 3 (Chapter 6.3). 11. Carry out the first rolling process and correct the settings according to Chapter 8. www.lmt-fette.com LMT_Bedienungsanleitung_T18F_T27F_e.indd 52 02.08.11 17:40... -
Page 57: Calculation Sheet
Chapter 6.2 _____ Safety distance = 1.5 · A Chapter 6.3 X-coordinate = 2 · Chapter 6.3 Selection accord- Dwell-time rotations = 2 … 5 ing to Chapter 6.3 60 · n Dwell time ______ www.lmt-fette.com LMT_Bedienungsanleitung_T18F_T27F_e.indd 53 02.08.11 17:40... - Page 58 Operating Manual Tangential Rolling System T18F - T27F Notes www.lmt-fette.com LMT_Bedienungsanleitung_T18F_T27F_e.indd 54 02.08.11 17:40...
- Page 59 LMT_Bedienungsanleitung_T18F_T27F_e.indd 55 02.08.11 17:40...
- Page 60 Operating Manual Tangential Rolling System T18F - T27F LMT Fette Werkzeugtechnik GmbH & Co. KG Grabauer Str. 24 21493 Schwarzenbek Germany Phone +49 41 51 12 - 0 +49 41 51 37 97 www.lmt-fette.com Rolling-Hotline +49 41 51 12-391 www.lmt-fette.com E-Mail-Hotline teamrollen@lmt-tools.com...