TOOLING & WORKHOLDING
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Synergies and solutions
The long view
conditions due to short A wide frontal chip pocket also
production runs. Therefore, it’s allows smooth material flow to
important to have tools that can lessen overall cutting resistance.
be relied upon to be cost- The synergy of these features is
effective, reduce set-up time and also a factor in lowering friction
offer flexibility whilst maintaining leading to reduced cutting
high levels of productivity. temperatures and improved wear
Several key features of the new resistance, contributing towards
MP breaker were designed to overall productivity with fewer
meet the requirements of multi- insert changes.
purpose functionality. During a Workpiece dimensional
typical copy turning operation, accuracy and consistency is also
conditions such as depth of cut, improved when lower cutting
feed rate and the cutting speed temperatures are maintained and
can vary significantly which can heat analysis of chips clearly
lead to a number of problems shows areas that have benefitted
and reduce efficiency. from the extra shapes formed in
Chip breakers are effective the chip breaker. Despite
Finding tooling solutions for Increasingly intricate within their own operating improvements in modern
small batch work is not always components are being envelope, but performance soon coatings, a well designed breaker
a simple task and engineers machined as part of everyday suffers outside these parameters. can contribute greatly towards
are constantly searching for a production and the increased Such conditions are typically improving the rate of crater wear
multi-purpose option to complexity places heavy found during extreme differences by reducing the amount of heat
improve efficiency. demands on the tools needed in workpiece geometry causing generated at the cutting edge.
Utilising a synergy of for efficient manufacturing. In problems such as chip MP breaker is available in four
innovative chip breaker addition, greater emphasis is wrapping that can lead to different grades and six insert
geometries and coatings also being placed on inventory machine downtime and uneven types for machining steels Designed specifically for 5- Excellent machining results
enabled by advancements in levels, creating the need for insert wear. This can be solved through to cast iron. axis applications, a series of are possible when either type of
tooling technology and matching tools to be as versatile as with a multi-purpose breaker. toolholding solutions from SVL is combined. Experienced
a suitable carbide substrate, was possible, especially in smaller Specific features such as wings Schunk Intec aims to improve users can also achieve extreme
the answer when Mitsubishi machine shops where varied located either side of the main
> MITSUBISHI
productivity and minimise extended lengths by clamping
Materials developed its latest batch quantities of components peninsula breaker delay wear machine downtime. several extensions together
turning inserts, UE6105 with negate the need to find the propagation and preserve chip MATERIALS Among the new additions is whilst maintaining minimal run
MP chipbreaker. absolute optimum cutting control even as the insert wears. www.mitsubishicarbide.com the long, slim Tendo SVL hydro out at the cutting tool.
expansion extension providing The Tendo LS is somewhat
an extension length of 150mm bulkier but offers more stability
Take stock
or 200mm that doesn’t require when compared to other
any auxiliary equipment and hydraulic toolholders. The
converts almost any precision Tendo hydraulic expansion
toolholder into a flexible toolholders have a 25° chuck
Hainbuch Mando T212 the vulcanised, hardened specialist for narrow chamfer that is enough to
segmented internal clamping bush. The standard spaces - independent of the reduce the interference contour
clamping bushes are used system covers a clamping range spindle interface. by 40%. In addition, the L1
extensively for customer of 8mm to 100mm. Its precise run out of dimension of the precision
specific workholding Endstops can be fitted in 0.003mm, excellent vibration toolholder is 150mm or
solutions, but now the front or behind the mandrel and dampening and internal coolant 200mm. The long version
company has announced through the pull back clamping supply ensures good machining achieves true running of
that the proven mandrel operation, a positive location results and long tool service life. 0.003mm at 2.5 x D from the
principle is not only and accurate, rigid grip can be A single Tendo extension can be front of the toolholder.
available from stock as part achieved. It is also quick to fitted with a variety of standard With the Tendo E hydraulic
of Hainbuch’s standard change and can be used for tools, making expensive expansion toolholder, Schunk
product line, but also in XXS open or blind bores. specialist tools or shrink provides affordable entry into
format with a minimum The mandrel can be fitted to systems unnecessary. the world of high precision
diameter of just 8mm. any type of turning or static Also designed for optimised hydraulic expansion technology.
The T212 mandrel has no machine – either as a interference contours, the Tribos The Tendo E is offered for the
projecting draw bolt, so there is standalone mandrel or a quick SVL is a 100mm, 150mm or interfaces SK 40 + 50, JIS-BT
no wasted clamping length and fit accessory on the front of the 200mm long toolholder 40 + 50 and HSK-A 63. The
no fragile spring steel slotted Hainbuch collet system. extension as standard (specials clamping diameter is
mandrel due predominantly to Versions are available for upon request), that can be uniformly 32mm for SK 50 and
special applications which can combined with various BT 50 and uniformly 20mm for
be designed to order and toolholders. The one piece, high SK 40, BT 40 and HSK-A 63.
have included internal precision extension covers all Smaller shank diameters can be
clamping solutions to toolholder diameters from clamped via intermediate
400mm diameter and 0.3mm to 5mm in 0.1mm sleeves.
profiled bore gripping. increments and 6mm to 20mm
in 2mm increments, and has a
> HAINBUCH
true running and repeat > SCHUNK
www.hainbuch.co.uk accuracy of 0.003mm. www.gb.schunk.com
18 March 2010 • Production Engineering Solutions
www.pesmag.co.uk
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