Update for automatic dispenser

The Mapal Unibase-S automatic dispenser has been enhanced and optimised with ergonomic aspects that improve ease-of-use when storing and managing frequently required consumables. For instance, the display unit is now on the top of the Unibase-S, making operation easier for shop-floor users.

Another development sees the software completely changed to the Unibase system. This move enables the enhanced automatic dispenser to be coupled to existing Unibase systems, or be used as a stand-alone solution.
Featuring compact dimensions, the Unibase-S can be installed directly on a workbench. The 96 or 192 compartments are suitable for storing indexable inserts, cutting tools, chucks or even personal protective equipment. Locating the system close to the workstation or operator can save the employee significant time as it averts the need for continual trips to a central warehouse or stores area.
Taking consumables from the Unibase-S is quick and uncomplicated, and shop-floor staff can access supplies in just a few short steps. Initially, the employee must log in via the touchscreen. To make this even faster, an RFID chip or fingerprint can be used. Only registered employees can remove articles from the system. If an employee is not logged in, it is not possible to turn the dispensing drum and the compartments remain locked.
After the desired item has been selected via the Unibase software, an LED identifies the compartment where it is stored. The dispensing drum is then rotated manually to the withdrawal position where the team member can access his or her consumable. After opening the dispensing compartment, the system automatically registers the removal of the item, while the software automatically updates stock levels.
For further information www.mapal.com

Mastercam accepts Widia Novo

Widia’s online platform, which is available in the UK from Industrial Tooling Corporation (ITC), now allows tool assemblies to be directly imported by users of Mastercam, credit to a newly formed collaboration. The partnership between Widia and CNC software developer Mastercam provides a solution that enables information importing from Novo directly into Mastercam 2018.

Previously, manufacturers may have complained of having to search through large and complex catalogues to find related tools, then having to request or build assemblies from scratch for use in systems such as Mastercam.
The integration of Widia Novo and Mastercam allows end users to save significant time searching for the desired tools and building 3D tool assemblies that can be brought directly into the CAM software for easy use by most machine shops. Accurate tool definitions are a critical factor in modern CAM applications, and tool-path algorithms take advantage of these definitions to provide safe and efficient motion. In addition, the models imported from Widia Novo help to generate accurate in-process stock models that can be leveraged in subsequent operations.
“One of the promises of digitisation in manufacturing is greater precision and speed through effective data use,” says Chris Merlin, director of portfolio commercialisation at Widia. “This is where integration is a must. Users want their systems to work together seamlessly via simple solutions, without extra effort on their part. By connecting Mastercam and Widia Novo, users can effortlessly join cutting-tool data with machining data. The 3D models, drawings and starting parameters are easily available for validation and programming processes. All this leads to less misapplication of tooling solutions, more optimal machining strategies, and increased productivity with better quality in the manufacturing environment.”
For further information www.itc-ltd.co.uk

Plug and play digital adjustment system

Rigibore’s digital adjustment system, Smartbore allows the precise setting of fine-boring tools without the need to unclamp/clamp, thereby eliminating the negative impact of conventional tool adjustment.

“On many high-value components, the difference between perfect and scrap is often a matter of microns; scrap parts are expensive in terms of material and the loss of valuable machining time, impacting heavily on a company’s bottom line,” says Roger Bassett, chairman of Rigibore. “Until now, the conventional method of fine adjustment meant unclamping the boring tool, making the adjustment, re-clamping and taking a test cut. This process requires skilled operators, is time consuming and is never guaranteed to give you a true size adjustment, meaning further test cuts or, worse, scrap parts.”
Rigibore’s design sees Smartbore tools positively pre-loaded in the opposite direction to the cutting force. The result is that accurate adjustment, by as small a movement as 0.001 mm on diameter, is achieved with no measurable backlash. This rigid design allows operators to ‘plug and play’ by inserting the handheld Smartbore adjuster, delivering incremental diameter changes and then removing the adjuster to guarantee right-first-time precision.
The Smartbore adjuster displays the adjustment reading on the LCD, allowing fine tolerances to be set by operators of all skill and experience levels. Tools can therefore be quickly and accurately adjusted in the machine spindle with minimum downtime and in the knowledge that the adjustment requested is the adjustment made.
Smartbore can be applied to a range of designs, including finishing cartridges and a boring head known as Smartbore Nano.
For further information www.rigibore.com

Reliable turbocharger production

Most turbochargers are exhaust gas turbochargers, and each different automotive manufacturer has a different design that incorporates special geometries and the need for special tools.

However, when it comes to petrol engines, one factor is common in all variants: the very high temperatures achieved during operation. It is due to this reason: the turbine housing – the so-called ‘hot side’ – is manufactured from a very abrasive, heat-resistant material. These materials represent a particular challenge for cutting tools.
Mapal has taken up these challenges and developed new cutting materials and tool geometries. For instance, the company has introduced a range of face-milling cutters featuring pressed, radial ISO indexable inserts. The milling cutter series includes tools designed for roughing the face surfaces of turbocharger housings. Of particular note, the cutting material is specially matched to the machining of heat-resistant cast steel. This material is said to extend tool life significantly, thereby improving cost effectiveness and productivity.
ISO indexable inserts with 16 usable cutting edges are the highlight of Mapal’s latest face-milling cutter, which is a particularly economical prospect for turbocharger manufacturers.
To provide an example of performance, a 125 mm diameter variant with 14 inserts recently ran at a speed of 80 m/min (dry) and a feed rate of 0.12 mm per tooth to help maximise productivity and deliver a tool life of 125 parts.
The company has also released a newly developed turning tool system for pre-machining the catalytic converter flange on turbochargers. Designed to be highly cost effective, the system incorporates tangential technology and is used on the diameter and, due to the upright and horizontal installation of its LTHU inserts, allows eight effective cutting edges to be used per indexable insert.
For further information www.mapal.com

Better ISO M and S machining

Newly developed by Walter GB is the series of single-sided Tiger.tec Silver indexable inserts featuring HU5 geometry for the heavy roughing of stainless steels and high-temperature alloys in the ISO M and S groups. As the inserts have a larger contact surface to the tool holder than double-sided inserts, stability is increased, which in turn provides the user with a number of advantages.

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Walter says that benefits include: greater cutting depths; higher feed rates at low cutting forces – thanks to the curved cutting edge and deep chip-breaker groove that consequently reduce machining temperature; improved metal removal – in one test, 18.36 l/h instead of 10.71 l/h; and increased tool life of up to 75% – courtesy of the variable rake angle in the area of the corner radius that permits soft chip reforming.
The main cutting edge, which is protected by a negative chamfer, prevents fractures when machining hard edge zones and optimises the performance on forged parts, for example. Components needing interrupted cuts and other demanding operations are equally viable, while customers machining materials such as AISI 316, Inconel 718 and titanium, in particular, will gain rewards.
Offered in the standard basic shapes of CNMM, DNMM and SNMM, the HU5 geometry means Walter now offers 12 geometries in six grades, as well as tools with precision cooling and ceramic or CBN inserts for ISO M and S workpieces.
For further information www.walter-tools.com