Star SU Europe | Samputensili

24 – 30 January 2019 IMTEX Bangalore 2019

7 January 2019 rtarantino

Samputensili is looking forward to meet customers and partners at IMTEX 2019 in Hall 4, Booth B120. The show will take place at the Bangalore International Exhibition Centre (BIEC) from 24 to 30 January, 2019 in Bengaluru. The Italian company is eager to show the results of its constant strive for precision and excellence, in an effort to make customers’ manufacturing more reliable and efficient.

Samputensili G 160 – an Indian premiere

The highlight of the booth will be the Samputensili G 160, an innovative gear grinding machine that the company is very proud to launch in India. The G 160 has been especially designed and manufactured to fit the requests of the automotive market, which is focusing on high performances and excellent quality. The Samputensili G 160 features a new concept for the high-productive grinding of gears up to 160 mm diameter with double work spindles, where separate X1 and X2 axes, driven by linear motors, replace the typical rotary turret, enabling a faster workpiece change and a record-breaking chip-to-chip time of less than 2 seconds including meshing, synchronization and simultaneous repositioning of the tool. This unique, patented machine concept ensures the best production times currently on the market.

Wide selection of gear manufacturing tools

In addition, a wide selection of gear cutting tools manufactured by Samputensili and its American partner Star SU will be on show as the perfect complement for customers’ most demanding manufacturing tasks. A special highlight among them will be the brand new INNOHob®, an innovative gear hob that combines a very low surface roughness with a dedicated cutting-edge geometry, ensuring an improvement of the tool life of up to 80% compared with the standard hob technology.

Click here to know more about the IMTEX 2019!

Know-how

The grinding evolution from the Prehistoric time to the present

11 October 2018 rtarantino

Grinding has been employed in manufacturing for more than 100 years although the earliest grinding practice goes back to neolithic times thanks to the Homo Sapiens activities. Size reduction is infact the oldest engineering process started right in prehistoric times.

As the years go by there is an evolution from stones, mortal and pestle, saddlestone mill, larger querns driven by animals, water wheels until the 20th century that is defined as the modern grinding process birth. Indeed, the grinding process achieves his scientific basic from 1914 thanks to the seminal publications by Alden and Guest. Since then grinding is defined as a machining process thant employs an abrasive grinding wheel rotating at high speed to remove material from a softer material.

Nowadays in modern industry the grinding process is carried out thanks to machine tools which combine computer-controlled feed-drives and slide-way motions, allowing complex shapes to be manufactured free from manual intervention.

Grinding evolution has also increased grinding wheel speed and removal rates: they boosted by two to ten times over the last century.

Also the abrasive types have evolved by ensuring advances in productivity. As a matter of fact, new ceramic abrasives based on sol gel technology have been introduced together with the development of superabrasive cubic boron nitride (CBN) and diamond abrasive based on natural and synthetic diamond.

Productivity has also been increased thanks to the insertion of new grinding fluids and methods of delivering grinding fluid. These fluids have also been an essential part in achieving higher removal rates and maintaining quality.

In recent years, grinding evolution has passed through the inclusion of high-velocity jets, shoe nozzles, factory-centralized delivery systems, neat mineral oils, synthetic oils, vegetable ester oils and new additives. Minimum quantity lubrication provides an alternative to flood and jet delivery aimed at environment-friendly manufacturing.

Thanks to all of this innovation, today grinding is a key technology for production of advanced products and surfaces in a wide range of industries.

Tools

Star SU China awarded thanks to its Scudding tools

11 July 2018 rtarantino

We are proud to announce that our Chinese joint-venture Star SU International Trading (Shanghai) Co. Ltd won the “2018 Annual Users Good Choice Award” of “AI Automobile Manufacturing Industry” thanks to its Scudding tools features.

Indeed, on June 27, 2018, Star SU China was invited to take part in the exciting award ceremony of the “5th AI Users Favorable Comment Award “, which was held by the trade magazine of “AUTOMOBIL INDUSTRIE China ” under the German Vogel Industrial Media. Mr. Han Jinxin, Cutting Tools Sales Manager of North of China of Star SU China, proudly received the award on behalf of Star SU China.

The selection of “AI Users Favorable Comment Award” had lasted for 3 months. Through the comprehensive network voting user evaluation, editorial evaluation, users telephone survey and other links, “AUTOMOBIL INDUSTRIE China” finally picked out the automobile equipment products and solutions featured with “advanced, practical, reliable, high quality, high efficiency, intelligence and cost performance”. Thus, Star SU China’s Scudding with 3757 votes, won the ” 5th AI Users Favorable Comment Award” prize.

The awarded Scudding ® tools are the result of an alliance between Profilator, Star-SU and our Samputensili company for the global market. Their manufacturing technology allows the machining of internal or external gears/splines without the need of an undercut or groove. The end of the gear can be a defined programmed ramp of radius. This process is quicker and more productive. In fact, the high number of cuts per time unit not only leads to a very short cycle time, but it also produces high quality gears with a low surface roughness.

Nowadays, Chinese automobile market has higher requirements for the manufacturing efficiency, quality and cost. In this regard, we are glad to claim that our joint-venture can provide customers leading solutions to meet all their production needs.

Born on March 1, 2015, Star SU International Trading (Shanghai) Co. Ltd is a key result of the fruitful partnership between Samputensili and Star Cutter in order to strengthen and extend their presence on the global market and in particular to the Chinese market. Actually, the expansion of the co-operation to China enhances the presence of both Samputensili and Star Cutter in this strategic market, strengthens their position and allows them to achieve a competitive advantage in this country.

We congratulate on our Chinese joint-venture for this trophy and we also would like to thank all customers and friends who voted for them. Customer satisfaction is always the most powerful engine to push Star SU China and our Samputensili Company moving forward!

Tools

SU Technical Seminar in India

26 March 2018 rtarantino

On week 10th, 2018 Samputensili Cutting Tools organized a technical seminar in Pune, India.

Pune is known as one of India’s most important cities for automotive companies and their supplier. Especially a huge number of gear and transmission manufacturer are located there. Also, Samputensili has its facility directly in Pune city center to be close to our local customers. During that week the European management and our local Indian colleagues of Samputensili combined their forces to offer the Indian market a full day dedicated technology seminar. The group of attendants was composed by experts working for some of the most relevant powertrain companies in India, ranging from motorcycle through car to truck industries.

The seminar was focused on the full range of Samputensili’s manufacturing program showing all its aspects, advantages and technical facts. After a digression about Samputensili and its joint venture Star SU given by Teodoro Ceglia, General Manager Samputensili Cutting Tools, our Global Product Manager, Dr. Deniz Sari spoke about technical details, challenges and solutions for gear manufacturing processes. The presentation covered fundamentals, hobbing, shaping, shaving, chamfering and scudding of gears. Every chapter ends with an application example, which shows, that Samputensili is not just a tool supplier, furthermore Samputensili helps to set up new or improve existing production processes. Additionally, Dr. Deniz Sari introduced the audience in the newest tool innovations like the internal chamfering tool or a recently launched high-performance tool family.

During the full day, our customers had successful discussions with our experts from India and Europe. Many question were discussed during the seminar and our customer collected solutions and innovative ideas in their factories.

With their local facility Samputensili can offer the Indian market gear cutting tools with state of the art technology.

It has been a pleasure to have all of you on our Seminar and we are looking forwards to see you soon.

Below some images of the event

Tools

14 – 17 March 2018 Samputensili at the GrindTec 2018

31 January 2018 rtarantino

Star SU and Samputensili are looking forward to meeting customers and partners at the upcoming GrindTec Augsburg (March 14-17, 2018) in Hall 3, Stand 3100 to show the latest in advanced technology offerings, in an effort to make customers’ manufacturing more reliable, efficient and environmental friendly.

A wide selection of gear cutting tools, round tools, carbide blanks and preforms manufactured by the Italian company Samputensili and its American partner Star SU will be on show as the perfect complement for customers’ most demanding manufacturing tasks. The booth will also feature interactive displays on Star’s line of 5-axis CNC tool and cutter grinding machines which are engineered to manufacture and recondition a wide variety of complex cutting tools.

These and many more surprises will be awaiting you at GrindTec 2018, Hall 3, Stand 3100!

For more information about the show, please click here.

Tools

9 – 13 April 2018 Samputensili at the CCMT Shanghai 2018

31 January 2018 rtarantino

We are glad to announce our participation at the CCMT Shanghai 2018 (April 9 – 13, 2018), which will take place in Shanghai.

This year China CNC Machine Tool Fair (CCMT) will focus on Digitalization, Interconnection and Intelligent Manufacturing in a very forward-looking way.

We long to meet clients, partners and friends to share the latest news concerning new developments, investments and more!

Soon more information

For information about CCMT Shanghai 2018, please click here.

Tools

18 – 22 September 2018 Samputensili at the AMB 2018 Stuttgart

21 September 2017 rtarantino

We are glad to announce our participation at the AMB 2018 Stuttgart (September 18 – 22, 2017), which will take place in Stuttgart.

AMB, the international exhibition for metal working, is a leading industry trade fair for metal-cutting technology. Every two years more than 1,450 exhibitors from 33 countries showcase the latest developments in machine tools, precision tools and relevant periphery for metal machining.

We look forward to meeting clients, partners and friends to share the latest news concerning new developments, investments and more!

Soon more information

For information about AMB 2018, please click here.

Know-how

What is the Archimedean spiral in a gear hob?

13 September 2017 rtarantino

An important element of the gear hob design is the tip which represents a relief of the tooth profile and a part of the Archimedean spiral.

The Archimedean spiral is a curve traced out by a point moving in such a way that its movement towards or away from the center is uniform with the increase of its vectorially angle from the starting line. This curve is used to ensure the continuity of the tooth profile during the resharpening.

For a resharpening with a zero-rake angle, the cutting profile lies on a plane that passes through the hob axis and the Archimedean spiral must ensure that the profiles that are on this perpendicular section are constant. This curve is used in the tooth profiles of the gear hob.

The characteristics of the Archimedean spiral are:

In Archimedes spiral, any ray passing through the origin does intersect successive turns of the spiral with a constant distance which is equal to 2 π Therefore, it is also named “arithmetic spiral”.
An Archimedes spiral, there are two arms – one arm for θ> 0 and another for θ < 0. These two arms are connected to the origin. One arm is shown in the graph. If we take the mirror image of this arm along Y axis, the other arm will be obtained.
Usually the term Archimedean spiral is used for more general spirals. The normal one occurs when in its equation, n = 1. Other spirals that fall into this group are the Fermat’s spiral and the hyperbolic spiral.
All the static spirals are logarithmic spirals in nature, except for Archimedes spiral.

Know-how

Discovering all the parts and elements of gear hob

19 July 2017 rtarantino

A gear hob is a gear cutting tool composed of different parts. The main parameter characterizing a gear hob is the module, which is the result of the division between the pitch gear diameter and the number of the teeth.

Another element of the hob is the pressure angle which coincides with the nominal pressure angle of the gear. The normal pressure angle α_n– measured on a section perpendicular to the direction of the thread – and the axial pressure angle α_t– measured on an axial section of the hob – are easily distinguished.

Besides, helix angle β, also called thread angle, is measured on the pitch diameter of the hob depending on this value and the number of starts. The angle is direct proportional to the diameter, pitch, module and number of threads. So, when this increase also the other parameters increase consequently. It is important to highlight that the helix direction of the hob is chosen in agreement with the helix direction of the gear.

Gashes are another fundamental geometrical element of a gear hob. These are serrations that cut the threads either in an axial or in a perpendicular direction. The number of gashes should be chosen during the design phase on the basis of many factors, including final quality and working conditions. They depend on the hob diameter and on the number of starts. The current tendency is to design hobs with a larger number of gashes due to the fact that the hobbing time is reduced and the feed speed is higher. Moreover, the gash determines the cutting face by intersecting the thread. The cutting face is radial in the majority of cases. In any case, to realize a positive or negative rake angle, the hob must be reshaped with a grinding wheel positioned out of axis by a distance that depends on the rake angle itself and on the hob diameter.

There are also other important gash’s elements which influence the cutting efficiency of the tool, just like:

the tooth back angle;
the bottom radius of the gash;
the gash depth.

These are just some of the most important elements of a gear hob, to know the others read the news.

Tools

Gabriele’s internship experience in Samputensili

19 June 2017 rtarantino

“For the past four weeks i had the unique occasion to work at Samputensili thanks to the “Young apprenticeship programme” (alternanza scuola lavoro) supported by my school, Istituto Salesiani. This experience marked my access to the business world since it was my first time in the real working life, where I had the chance to see all I learned at school. Indeed, working for and with a big group like SAMP is not like going to school. In fact, at school you just study hard in order to get nice marks and most of the time you are doing it individually. Instead at SAMP I have always worked within teams. This is a completely different approach for me and I liked it. In particular, I appreciated the fact that in this way everybody is responsible for our common goal: client’s satisfaction.

I felt welcomed by everybody, from my tutors to workers, who were friendly and keen to teach me the secrets of the job. I have carried out calculation activities as well as more practical activities related to the assembly and adjustment.

Furthermore, I have noticed that SAMP is particularly focused on safety and its related norms. Indeed, during my internship, I attended a course on security and safety and one on the bearing assembly. Both were extremely interesting.

Now, I have to decide if I will continue my studies in the engineering area or start to work immediately. In both cases, I would like to work in the SAMP Group”.