LIBERTY Speciality Steels has established an on-site state of the art machining centre. This complements our steel offering and adds value by moving downstream.
We have the ability to deliver projects from initial concept right through to finished components serving sectors as diverse as Aerospace, Automotive, Oil & Gas, Yellow Goods, Construction, Industrial Machinery and General Engineering.
Click here to download the full Advanced Machining Centre brochure.
Scope
Capability
The current manufacturing capability covers:
- Horizontal turning capability is 480mm in diameter x 2m in length
- Vertical turning capability is 920mm in diameter x 800mm in length
- Horizontal and vertical milling up to 3m long, 800mm wide and 720mm high
- Internal and external cylinder grinding up to 1.6m long
- Latest in on board, CMM and comparator checking
- Leading edge tool holding and work holding
Certification
Fully certified to meet aerospace customer requirements.
Materials
We have the ability to source and manufacture a wide range of materials from our own manufacturing capability and through our own in-house service centres.
Typical materials sourced and manufactured include carbon, alloy, tool and stainless steels, nickel alloys and titanium alloys.
Approvals
AS 9100 Rev D, ISO 9001, ISO 14001
The heart of the factory
Mazak I-400ST (Multi-tasking mill/turn)
With 12” main chuck and a 10” second spindle plus lower turret the I-400ST features a large machining area and high accuracy performance, long strokes for large workpiece capacity and unsurpassed versatility thanks to B-Axis and C-Axis contouring, full simultaneous 5-Axis operation.
| Chuck size ( Main / Second ) | 12” / 10” |
| Max. machining diameter (Upper turret) | 650mm (25.9”) |
| Max. machining diameter (Lower turret) | 420mm (16.5”) |
| Maximum machining length *1 | 1519mm (59.8”) |
| Travel ( X / Y / Z ) | 615 / 250 / 1585mm (24.2”/9.8”/62.4”) |
| Travel ( W / B ) | 1539mm (60.6”) / -30o to 210o |
| Max. spindle speed | 4,000rpm (main), 3,000rpm (second), 12,000rpm (milling ) |
| Bar feed | 102mm diameter x 1500mm length 70bar high pressure thru coolant |
Mazak VTC800/30SR (5 – axis milling)
The VTC800/30SR allows for multiple – face milling and 5 – axis simultaneous machining thanks to the 110o swinging 18,000rpm spindle.
| Table Size | 3500 x 820mm (137.8” x 32.3”) |
| Travel ( X / Y / Z ) | 3000 / 800 / 720mm (118.1” / 31.5” / 28.3”) |
| Travel (B / C) | -110o to 110o / 360 |
| Max. spindle speed | 18,000rpm |
Fanuc Robodrill (5-axis milling)
The Robodrill a-DIA series is a high performance, compact axis/vertical machining centre capable of machining operations like face milling, end milling and drilling.
| Table Size | 850mm x 410mm (33.5” x 16.1”) |
| Travel ( X / Y / Z ) | 700 / 400 / 330mm (27.6” / 15.7” / 13.0”) |
| Maximum load of table | 300kg (660lbs) |
| Max. spindle speed | 10,000rpm |
Turning
Mazak Quick Turn 250mb
| Chuck size main spindle | 10” |
| Maximum swing | 675mm (26.6”) |
| Maximum machining diameter | 380mm (15”) |
| Rotating speed maximum | 4,000 min-¹ |
| Motor output (30 minute rating) | 26.0 kW |
| Rotating speed maximum | 6,000 min-¹ |
| Number of tools | 12 (all 12 can be driven) |
| Mill spindle motor output (10 minute rating) | 5.5 kW |
| Travel (X / Z ) | 230mm / 575mm (9.1” / 22.6”) |
Equipped with Hydrafeed RoboJob Turn-Assist 180
| 20kg payload | Workpiece size from 23mm – 180mm Diameter |
Mazak Quick Turn 450M
| Chuck size main spindle | 18” |
| Maximum swing | 845mm (33.3”) |
| Maximum machining diameter | 580mm (22.8”) |
| Rotating speed maximum | 2,000 min-¹ |
| Motor output (30 minute rating) | 37.0 kW |
| Number of tools | 12 (all 12 can be driven) |
| Mill spindle motor output (10 minute rating) | 7.5 kW |
| Travel (X / Z ) | 350mm / 2,120mm (13.8” / 83.5”) |
Mazak Mega Turn 900m
| Chuck size main spindle | 36” |
| Maximum swing | 1000mm (39.4”) |
| Maximum machining diameter | 920mm (36.22”) |
| Rotating speed maximum | 800mm (31.5”) |
| Motor output (30 minute rating) | 3,000kg (6614lb) |
| Number of tools | 4,000 min-¹ |
| Mill spindle motor output (10 minute rating) | 12 (all 12 can be driven) |
| Travel (X / Z ) | 470mm / 876mm (18.5” / 34.5”) |
Doosan Puma 400LB
| Turning Diameter | 560mm |
| Chuck size | 18” |
| Max. Turning Length | 2000mm |
| Max. Bar Working Capacity | 117mm |
| Max. Spindle Rotation Speed | 2,000rpm |
Doosan Puma 240
| Chuck Size | 8” |
| Max. spindle speed | 3,600rpm |
| Travel (X / Z) | 360 / 452mm (14.18” / 17.8”) |
Churchill Omega 65
| Chuck size | 8” |
| Max. spindle speed | 4,500rpm |
| Travel ( X / Z ) | 380 / 500mm (15” / 19.7”) |
Precision Grinding
Studer S41
| Distance between centres | 1600mm (63”) |
| Centre Height | 225mm (8.9”) |
| Max. workpiece weight between centres | 250kg (550lbs) |
| Max. travel ( X / Y ) | 350mm (13.8”) / 1750mm ( 68.9”) |
| Speed ( X / Y ) | 0.001 – 20,000mm/min (0.000,04 – 787inch/min) |
| Resolution ( X / Y ) | 0.0001mm (0.000,000,4“) |
| Swivelling range | -40o to +225o |
| Repetition accuracy | < 1” |
| Swivelling time for | 180° < 3 sec |
| Resolution | 0.00005o |
Inspection Room
Our dedicated temperature controlled inspection room has the following facilities:
Nikon CMM frame with Renishaw REVO Renscan5 head
| Frame | Nikon LK-V 20.12.10 Bridge Type |
| Head | 5-Axis |
Inspection Envelope
| Length | 1000mm (39.4”) |
| Width | 800mm (31.5”) |
| Height | 500mm (19.6”) |
| Accuracy | MPE: 2.9µm + L/375 |
Baty R400 Shadowgraph
| Measuring range | 300mm x 150mm (12” x 6”) 0.5 mm resolution |
| Surface Illumination | Yes |
Keyence IM-7010
| Field of view | Wide-field measurement mode : 200 mm x 200 mm 7.87 × 7.87″ (4x R50) High-precision measurement mode : 125 × 125 mm 4.92 × 4.92” |
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| Minimum display unit | 0.1 µm | |
| Repetition accuracy | W/o stage movement | Wide-field measurement mode: ±1 µm High-precision measurement mode: ±0.5 µm |
| With stage movement | Wide-field measurement mode: ±2 µm High-precision measurement mode: ±1.5 µm |
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| Measurement accuracy (±2σ) | W/o binding | Wide-field measurement mode: ±5 µm *1 High-precision measurement mode: ±2 µm*2 |
| With binding | Wide-field measurement mode: ± (7+0.02 L) µm*3 High-precision measurement mode: ± (4+0.02L) µm*4 |
CNC Software
To support machine tools the AMC has invested in software which includes:
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| Solidworks: 3D design software | Edgecam: CNC programming and toolpath generation software, full 5-axis capability | Vericut: Tool path verification and the material removal process simulation, detecting errors in CNC programs. | Sandvik InvoMilling: Process for machining gears and splines for small batch production and short lead times – benefits from 5-axis machining capability to produce different gear profiles with the same set of tools. |
Full Toolroom facilities
• Manual turning, milling, surface grinding
• Programmable band saw
Other facilities
• Oven and Cryogenic assembly
• Nikon off-line tool presetter, tooling ID chip system
• Dot matrix part marking
• Ultrasonic part cleaning facility
