Inside roller burnishing tool - IRG-7-S
| Machining | Through- and blind holes |
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| Diameter range | 200,9 - 400,8 mm | ||||||
| Adjustment range | -0.2 mm up to +0.6 mm | ||||||
| Rolling depth, standard | 280 mm over sleeve | ||||||
| Rollers | Diameter | Model | Qty. | Dimension "X" | |||
| 200,9 - 300,8 mm | S-9740 | 20 | 1.3 mm | ||||
| 300,9 - 400,8 mm | S-9740 | 26 | 1.3 mm | ||||
| Standard mount | Cylinder shank (with clamping surface on request) 30 - 50 mm dia. or Morse taper 4 - 5 |
| - VDI, HSK etc. mounts |
| - Different rolling depth |
| - Different number of rollers |
| - Special rollers |
| - Inside cooling |
Use parameters to be used for IRG-7-S
| Please note that this information represents guide values which must be adapted to the individual cases. | ||
|---|---|---|
| Workpiece oversize | up to 0,04 mm | |
| Tool preclamping | up to 0,1 mm Rotation direction of tool | Clockwise (M3) |
| Lubrication | Emulsion or oil; filtration of the lubricant (< 40 µm) can improve the surface quality and the tool life Pre-machining of workpiece | Surface roughness up to 15 µm, tolerance IT8 or better |
| Maximum hardness of workpiece | 45HRC |
What speed, what feed rate should be set?
If you mark the parameters of your application, a speed and a feed rate will be suggested below at the press of a button. Please note that the specified values are guide values which may need to be adapted.Return traverse always in rapid traverse.
Tip
When setting up a tool, the speed can be considerably reduced, however the feed rate per rotation is not to be decreased. Even when conducting roller burnishing under unfavorable conditions, e.g. when using high-strength materials, with insufficient lubrication or very deep holes, it is advisable to reduce the speed.
| 1 | Mount |
| 2 | Sleeve |
| 3 | Cage, incl. ball bearing, spring, locking ring |
| 4 | Taper |
| 5 | Roller |
| 6 | Rolling head, conversion kit for other diameter contains (3)(4)(5) |
| 7 | Clamping screw for taper |
| 8 | Clamping screw for sleeve |
| 9 | Locking ring |
Setting up, changing components of IRG-7-S
Adjusting the toolLoosen clamping screw (8), then turn the mount and sleeve against each other according to scale. 1 mark is equivalent to 0.01 mm in the diameter. Retighten clamping screw (8).
Tip for adjusting the tool
- When setting up a tool, the speed can be considerably reduced, however the feed rate per rotation is not to be decreased. Even when conducting roller burnishing under unfavorable conditions, e.g. when using high-strength materials, with insufficient lubrication or very deep holes, it is advisable to reduce the speed.
- To carry out a fast basic adjustment of the tool, it is advisable to adjust the tool to the smallest dimension and then to guide it into the pre-machined hole by hand. The tool can then be fed in in the hole until the rollers are felt to make contact. Starting from this dimension, 2-3 marks can still be fed in as the pretension. This basic adjustment then only requires minor corrections necessary in dependence on the roller burnishing results achieved.
Changing components
Rollers
Remove retaining screw (7) and locking ring (9), then take out the cage with the taper toward the front; separate the cage and taper. Replace the rollers in sets and remount the components.
Taper
Remove retaining screw (7) and locking ring (9), then take out the cage with the taper toward the front; separate the cage and taper.
Cage
Remove retaining screw (7) and locking ring (9), then take out the cage with the taper toward the front; separate the cage and taper. Replace the cage and remount the components.
Rollers
Remove retaining screw (7) and locking ring (9), then take out the cage with the taper toward the front; separate the cage and taper. Replace the rollers in sets and remount the components.
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Tip
Coat the roller seats with some grease so that the rollers are held in place by the grease during rolling.
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Tip
When replacing the rollers, clean the cage and check it for damage, e.g. run-in marks, rough spots etc.; replace components if necessary. Worn cages or tapers can considerably reduce the service life of the rollers.
Taper
Remove retaining screw (7) and locking ring (9), then take out the cage with the taper toward the front; separate the cage and taper.
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Tip
When replacing the taper, clean the cage and the rollers check them for damage, e.g. run-in marks, rough spots etc. Replace components if necessary. Worn cages or rollers can considerably reduce the service life of the taper.
Cage
Remove retaining screw (7) and locking ring (9), then take out the cage with the taper toward the front; separate the cage and taper. Replace the cage and remount the components.
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Tip
When replacing the cage, clean the tool inside and grease it lightly. Dirt particles, in particular chips, reduce the tool life and the quality of the roller burnishing results.
