May 25th 2010 By Web Development in India
Techno CNC Routers’ New Universal Knife System Easily Processes Multiple Applications in One Setup
New Hyde Park, NY - Techno, Inc. CNC Routers proudly introduces the Techno Universal Knife System, all in one universal tool that uses one main drive capable of processing multiple applications through interchangeable heads. Using a common rotary drive, the Techno Universal Knife System can change between the Oscillating Knife, Tangential Drag Knife, Spring Loaded Pen, Vinyl Drag Cutter or Creasing Wheel Kit when needed.
“Our Universal Knife System was designed to target various industries that would benefit from an interchangeable tool, says Roy Valentine, CNC Routers Sales Manager. Whether the company is a Sign or Point of Purchase manufacturer that needs to cut graphic art sheets printed on a wide format flat bed printer, HVAC manufacturer that needs to cut acoustic liners or a packaging manufacturer that needs to cut and crease corrugated cartons, this one system is the right product.”
In addition to the interchangeable heads mentioned above, the Techno Universal Knife System can be combined with the Techno Vision (digital image verification package) to provide Sign and Graphics customers a complete and easy-to-use digital finishing solution. System functions allow the operator to load material on any Techno CNC Router, select the image for routing and press “Start”. The machine will then verify the linear and rotational distortion and proceed in routing the pattern of the desired image before your eyes.
http://news.thomasnet.com/fullstory/575092
Tags: CNC Router
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May 24th 2010 By Web Development in India
Hexmaster rotary broaching attachments are designed to allow contractors to bid on more difficult work while keeping costs low.
The army, navy, air force and many other government agencies consume vast quantities of parts every day and require manufacturers to machine high-quality parts quickly, cheaply and accurately.
Many of these parts have ID or OD hexagonals, double hexagonals or other shapes that cannot be machined quickly (or at all) using conventional tooling.
Hexmaster rotary broaching attachments machine these shapes in seconds, at feed rates up to 0.012in/rev and speeds up to 2,000rev/min.
These attachments are suitable for manufacturing thousands of military fasteners and defence parts.
Tags: broaching
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May 24th 2010 By Web Development in India
LMT’s Fette division has developed a combination hobbing and deburring tool for gear cutting.
The tool enables the functions of a roughing hob, the deburring of the top and bottom flanks of each tooth and the finishing of the gear into a single operation.
Available through LMT (UK), Coventry, the multi-functional twist-free hob enables finished spur and helical gears to be completed in a single hobbing operation using a standard CNC hobbing machine with each of the cutters mounted on a single arbour.
The tool system, which was developed in conjunction with Liebherr Verzahntechnik, eliminates tooth flank ‘twisting’ or convexity error, one of the major drawbacks when hobbing helical gears that creates the need for correction and separate finishing operations.
The system also improves production lead time by combining separate operations into one as well as any requirement for special finishing tooling.
It contributes to smoother running of the gear as well as helping to reduce transmission noise.
A single arbour carries the assembly of cutters comprising the roughing hob, two chamfer/deburring cutters and the finishing hob - each separated by spacers.
This arrangement provides flexibility when specifying the productive cutters and settings for effective metal removal, enabling choice of threads, gashes, tooth design, cutter material and surface coating.
In addition, it enables the final finishing cutter to be selected to precisely meet the design profile and finishing requirement specification for the gear.
During the hobbing operation, the tooling system allows the hob head of the machine to be programmed to swivel to different angles for roughing, deburring/chamfering and finishing.
This ensures the lead and helix angles are correct for the individual hobbing cutters while still maintaining the appropriate lead angle for deburring and chamfering the roots and side edges of each flank of the gear tooth.
In developing the tool, LMT was also able to blend a gradient change into the pressure angle of the finish hob, which creates a ‘corrected’ tooth profile at the bottom of the gear tooth that is different to the top.
When the finish hob is engaged in the cut, a diagonal axis feed under CNC control compensates for and eliminates any tendency to create twist in the tooth.
As a result, especially on helical gears, by eliminating twist from the hobbing process, additional operations such as shaving to correct the convexity error are no longer required.
Tags: hobbing
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May 24th 2010 By Web Development in India
VW uses LMT Fette’s Nanosphere coated gear hobs to manufacture the corresponding gear wheels.
The coating is said to improve the stability of the tool’s cutting edges by at least 30 per cent.
VW Transmission System in Shanghai also uses the coating.
Nanosphere gear hobs at VW can be reconditioned up to 20 times.
LMT China will assume responsibility for reconditioning and re-coating the tools locally.
Tags: Nanosphere coating
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May 24th 2010 By Web Development in India
WNT (UK)’s new broaching system, designed for use on CNC lathes and machining centres, is allowing users to eliminate separate broaching operations and reduce manufacturing costs.
The range includes solid carbide tools (type NPU), certain sizes of which are compatible with WNT’s existing Mini-Cut toolholders, and a range of indexable insert type tools (type NPV); with both available to cut class C11 (DIN138), Class JS9 (DIN 6885) and Class P9 (DIN 6885) grooves.
The tools are available in a variety of widths, ranging from a nominal 4 to 10mm, with special widths available to order, using the straightforward order form in the WNT (UK) catalogue supplement.
The design of the clamping mechanism for the indexable NPV-type inserts is such that it overcomes one of the key issues with existing broaching systems, namely insert breakage.
As a result, cutting data can be increased and typically, when broaching a 42CrMo4 850N/mm2 steel, the feedrate will be 7200mm/min at a 0.072mm depth of cut.
The system is designed for use on lathes, machining centres and, in particular, sliding-head lathes, where slots that would normally be produced on stand-alone machine tools can now be completed in a single set-up.
By broaching as part of an existing machine cycle, users can also provide a more cost-effective solution to their customers.
For example, economical batch quantity for the process is now one-off, allowing work to be taken on that may previously have been turned down, due to the requirement of sub-contract broaching.
The rapid availability of special-width inserts and the ease with which they can be changed allows sub-contractors to react quickly to changes to customer requirements.
Tags: CNC lathes
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May 24th 2010 By Web Development in India
ITC Tooling has added the 2141 Cyber series range of two-flute drill-mill cutters to its drilling and chamfering tool line.
With a 90-deg included angle, this range is said to comfortable conduct drilling, milling, spotting, countersinking and chamfering operations.
The solid-carbide series is produced from an ultra-wear-resistant micrograin carbide that provides good tool life and productivity.
The combination of a solid-carbide composition and innovative geometries is said to optimise tool life and deliver good surface finishes.
With a 90-deg drill point end, the 2141 series is said to be a versatile tool that can be applied to a range of applications.
This capability range enables end users to use one cutting tool for a variety of tasks as opposed to using numerous tools.
This reduces tooling inventory and costs as well as cycle times.
For customers utilising highly productive machine tools with multiple tool positions, the 2141 series can reduce the need for drills, milling cutters and chamfering tools by conducting all operations with one tool.
This reduces tool changeovers and set-up times for the end user.
The series is available in 3, 4, 5, 6, 8, 10, 12, 16 and 20mm diameters with an identical shank diameter for each cutter.
The 2141 series has an 8, 11, 13, 16, 22, 25, 30, 35 and 45mm length of cut, combined with an overall length of 38, 50, 58, 64, 70, 84, 89 and 100mm to deliver optimum rigidity and productivity.
Tags: drill-mill
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May 22nd 2010 By Web Development in India
Paragon Precision Products has installed a Miyano BNJ-51SY2 fixed-head mill-turn centre, enabling an increased bar capacity of 51mm.
Paul Kratovil, managing director, Paragon, said: ‘The seven-axis machine having the ability to hold 18 driven tools in its 12- and six-station all-driven turrets, each with the added flexibility of Y-axis cross-feeds, gave so much potential to minimise productivity and maximise output.
‘We are now able to produce some parts in one cycle that took up to seven settings by previous suppliers to customers.
‘Our ability to overlap operations, perform all the deburring in-cycle and in a controlled fashion means consistency from the first to the last part in the batch.
He added that, once cycles are fine tuned on both machine types, operations are very stable and consistent, which means total confidence to run unmanned between 5pm and the start of the morning shift.
Tags: mill-turn centre
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May 22nd 2010 By Web Development in India
Star Micronics will introduce its Star ST-38 sliding-head mill-turn centres - suitable for the electronics, aerospace and medical sectors - at Mach 2010.
One of five Star multi-axis CNC lathes on show, it will take centre-stage on a stand that, at 350m2, is Star’s largest ever.
Star will host an impressive array of partner companies and their products.
All are designed to extract maximum benefit and productivity from sliding-headstock lathes.
Equipment on display will include LNS bar feeders and Star’s Agency range of FMB bar magazines; high-pressure coolant systems from Pumps and Equipment; Filtermist oil-mist collection and filtration; Nobel fire suppression; PSL Datatrack production-management software; cutting tools from WNT and NTK; and two agency lines from Emmaco UK, namely IBAG high-speed spindles and Argotech acoustic and power-monitoring systems.
In addition, manufactured parts can be inspected on a Hommel Opticline non-contact measuring system from Metrology Direct.
Demonstrations running on all five Star machines will show their full capabilities in conjunction with the above equipment.
In addition to the new ST-38 fitted with an FMB Turbo 5-55 bar magazine, there will be a 10mm capacity SR-10J equipped with an FMB Micromag and three 20mm capacity lathes.
There will also be an SR-20RIII with LNS 5-42 3m magazine, ECAS-20T plus FMB Turbo 3-36, and the SR-20JN without guide bush fed from an LNS short bar magazine.
Although sliding-head lathes above 32mm capacity are available on the market, it is very rare to find one in use in the UK because, until now, the mainstream players have not offered one.
The new lathe has 12 CNC axes shared between two C-axis spindles and three live turrets for one-hit machining of highly complex components.
X- and Z-axis rapid feeds are 30m/min, resulting in short idle times.
A three-axis and a two-axis turret can perform combinations of turning and prismatic machining concurrently on round or hexagonal bar rotating at up to 7,000rev/min in the main, 11kW spindle.
Another two-axis turret is devoted to simultaneous back-working on a parted-off component in the 7.5kW/7,000rev/min counter spindle.
Each turret has 10 tool stations driven by a 4kW/5,700rev/min motor for carrying out prismatic cross-working and end-working operations.
As each station can accept two tools, a total of 60 cutters can be resident in the machine for almost limitless metal-cutting flexibility.
Despite its suitability for machining complex components in small batches, the ST-38 remains faithful to the origins of sliding-headstock technology, as it can produce simpler parts economically in high volumes.
To this end, idle times are further reduced by Star’s motion-control system, in which programming is carried out off-line for relatively simple turning operations, resulting in high-speed cycles on the machine.
Conventional computer numerical control is provided by a standard Fanuc 30i-A CNC system.
It is used for more complex operations, programming being in ISO either remotely or at the machine.
For parts involving a combination of simple and complex operations, the complete cycle can be made up from both motion-control programming and traditional ISO format.
ST-38 is a strong, robust machine weighing well over six tonnes.
It has 350mm of headstock stroke in Z, allowing parts up to this length to be produced in one chucking.
The other 11 CNC machining axes are C on the main spindle; Y, Z and C on the synchronous sub-spindle; X and Y on both the left and right rear turrets; and X, Y and Z on the front turret.
Standard equipment is comprehensive, extending to a coolant chiller, broken-tool detection, air purge on the counter spindle, centralised lubrication, absolute position detection, component ejection monitoring and a parts conveyor.
The machine can be retrofitted with a chip conveyor if this option is not selected at the outset.
High-pressure coolant systems rated from 50 to 250 bar are also available.
They are invaluable for breaking up and removing stringy swarf, such as that produced when stainless steel is machined.
HPC also allows deep-hole drilling in the main and counter spindles to a maximum depth of 120mm.
Many of the tool-holders used on Star’s 32mm-capacity sliding-head lathes - ECAS-32T, SV-32 and KNC-32 - are compatible with the ST-38.
Tags: sliding-head lathes
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May 22nd 2010 By Web Development in India
At Mach 2010, Tornos will present its Almac CU1005 five-axis machining centres, which are suitable for use in the medical, watchmaking, electronic and micro-manufacturing sectors.
Tornos will also introduce its Gamma turning centres, which are available in three versions.
The Almac CU1005 five-axis machining centre performs high precision operations on simple-to-complex workpieces.
This stability is created by a mechanically welded base that sits on a load-bearing cast-iron frame that has significant mass and can guarantee excellent surface finishes and accuracy.
The X- and Y-slides of the Almac CU 1005 are mounted on pre-stressed rails and ball screws, with the vertical axis formed from a solid cast-iron V-guide.
With table movements performed by brushless AC motors with digital closed-loop control, the CU 1005 can be equipped with three-, four- or five-axes, a 180-degree rotating transfer table and either high-speed spindles or a multi-spindle block for high production environments.
With regards to speed, the CU1005 has a feed rate of 5m/min in X-, Y- and Z-axes over a working envelope of 220, 120 and 230mm respectively.
Within this compact envelope is an accurate machine tool with a positional accuracy and deviation of 0.001mm.
This envelope works under an ISO25 spindle taper that has a 1,000 to 12,000rev/min speed range with a clamping diameter from 1 to 16mm.
However, an optional 30,000rpm spindle is available with an ISO25 or HSK 32 taper.
The new offering has a capacity for 24 tool pots with 48 pots as an option for manufacturers with more complex production needs.
Even here, the Almac CU1005 demonstrates its remarkable speed with a tool-change time of 1.2 seconds.
Control comes from GE Fanuc.
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May 22nd 2010 By Web Development in India
Within 10 days of installing a 14-axis Citizen M32-V CNC sliding-head turning centre, precision turned parts specialist C and M Precision completed a contract of 10,000 hydraulic connectors.
This contract involved passing around two tonnes of 11/4in steel through the machine.
‘The M32 was installed within four days in the machine shop, which involved quite a lot of work by the Citizen Machinery team due to the high specification we had ordered,’ said John Cable, managing director, C and M.
‘It was then set up for the job and from pressing the start button, it ran continuously day and night including unmanned operation through the first and every other night,’ he added.
Cable and his team had already installed two M32-V machines over the past two years following earlier purchases of smaller capacity Citizen M16 and M12s.
The decision to add the third M32 was based on new orders.
‘We had a rising order book for up to 32mm components involving complicated milling operations that we could complete in single machining cycles and for which the machine is ideal,’ said Cable.
Cable also said that his setters are very familiar with Citizen’s M-series machines and they always specify options to ensure that maximum productivity and machine utilisation can be achieved.
‘This means we are able to be very competitive, maintain delivery promises and achieve the level of quality that is very consistent due to the repeatability of the machine,’ he added.
C and M Precision’s M32-V was ordered with IEMCA bar feed, a special LNS Turbo swarf conveyor able to accept both stringy and chipped swarf, Absolent filtration, fully programmable robotic unload coupled to a parts conveyor plus the Coolblaster 2,000 lb/in2 high-pressure coolant system.
‘If you plan to run unmanned then you need confidence the machine will repeat its cycle,’ said Cable.
The hydraulic connector component required 10 tools to complete the part but it was the added flexibility of the two Y-axis cross feeds on the machine that made the job cost effective by allowing the single production cycle to drill off-centre holes in the side of the component.
As well as turning, drilling, boring, grooving and threading, each component had to be roll marked with a code number.
The Citizen M32-V is able to carry up to 80 tools, 20 of which can be driven.
It is able to cut with three tools simultaneously at the main and subspindle - a feature that can contribute to reduced cycle times.
Tags: Sliding-head
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