Hot Isostatic Pressing (HIP) was developed in the 1950s at the Battelle Memorial Institute in Columbus, Ohio, as part of the Navy Nuclear Power Program. Continue reading “Hot Isostatic Pressing at FILMS SpA (OMCD Group)”
Harditalia srl is proud to have partnered with the Politecnico di Milano’s Engineering Department in the construction of a motorbike prototype. Continue reading “Proud to have partnered with Politecnico di Milano”
Besançon – France
The management team of Dimotek Eood, the Bulgarian branch of OMCD Group located within the Vidin district, Dimovo, organized an open day on October 21st, 2017 where they opened the factory doors to the many participants to celebrate 10 years in business.
The Italian delegation was composed of the owners, the OMCD Group management as well as some partner company representatives of the Bulgarian company. Also present at the event were representatives from local administrations including Eng. Tzye tan Asenov, the deputy mayor of Vidin, capital city of the region in the northwestern part of Bulgaria, near the Serbian and Romanian border: the deputy mayor honored Dimotek with a plaque of recognition for the investments made and for the benefits generated in one of the poorest and low-investment areas not only in Bulgaria but throughout the European Community.
The CEO of OMCD Group, Alberto and Franco Tedeschi, enthusiastic comments from the day: “It’s been a day full of emotions: together we reminisced on 10 years full of challenges and hardships but also immense satisfaction.”
To witness 10 years of Dimotek’s dedication and to promote the development of the social and productive environment some representative from scholastic institutes in the area were present with the hopes of planning and building a prosperous and productive future, an aspect the company pays particular attention to.
Diamil is a Harditalia trade mark dedicated to inserts. Its production is aimed primarily at the iron and steel industry and has several applications, including the manufacturing of various tube scarfing inserts. Two main technologies are employed during the steel tube manufacturing process: extrusion and welding.
The tube welding process generates excess material which must be removed to ensure that the finished product is perfectly formed. Diamil is responsible for this tube scarfing production phase: in fact, during this phase the inserts that are produced are utilized.
Recently Diamil’s research and development department implemented a highly innovative solution for producers of Al-plated and galvanized steel tubes. With these types of metals there is a problem during the tube scarfing procedure due to the extreme stickiness of aluminum and zinc: excess material adheres to the insert’s cutting edges. This jeopardizes the insert’s lifespan by significantly reducing it. Excess material adheres and sticks irreversibly, covering the other three cutting edges and leaving them unusable. Diamil changed the composition of the insert coating so that the chemical compatibility between this innovative material and the zinc or aluminum is significantly reduced. Thanks to this new coating, the insert’s lifespan increases from 20 to 50%, depending on the application and machinery used.
Another innovative feature of this product regards edge preparation. After the pressing phase, the insert is treated in the cutting edges area in order to ensure optimum sharpness. Over the past few months, Diamil has revolutionized the method used for this kind of machining, and has reached objectives which had been impossible to reach just a few months before.
The annual conference organized by the EPMA European Powder Metallurgy Association – Euro PM 2017 – was held in Milan’s MiCO – Milano Congressi, the largest convention center in Europe, from October 1st through the 5th. Euro PM offers a broad panorama of themes linked to powder metallurgy, and each year the most authoritative exponents of this industry meet together for this event.
As a member of the Technical Organizing Committee, Dr. Gian Pietro De Gaudenzi, the powder production manager at FILMS, helped plan the conference program and also served as co-chair during a session focused on hard metals. During another session, the FILMS delegate presented an essay entitled “Electrochemical studies on the behaviour of WC-Co hard metal as a function of cobalt content and environmental pH”, which was well-received by the participants.
A variety of initiatives characterized this year’s conference, which concluded with visits to companies and universities. A group consisting primarily of representatives from research institutes, consultants, managing directors of competitor companies, and potential clients visited the FILMS plant in Anzola d’Ossola. This moment provided yet another opportunity to network and share know-how.
FILMS, the main company in the OMCD group, welcomed the visitors to its plant and guided them on a tour which encompassed every stage of the production cycle.
The company provided a cultural and historical background for the visitors before they entered the heart of production: before touring the plant, the delegates visited the entire industrial district in Anzola d’Ossola. This visit served to introduce and provide a context for FILMS’ place in the OMCD group’s orbit, which is an industrial, family-run reality whose roots are well-entrenched in the VCO province.
After a brief tour, the delegates were welcomed with a coffee break and then divided into two groups, so that they could get a close-up view of the various production stations. They started out on the guided tour of the firm after receiving the necessary PPE (Personal Protective Equipment) packets.
The visitors were able to view the following units, as they followed along the production cycle sequence:
- The Powder Mixture Unit
- The Physical-Chemical Lab
- The Pressing Unit
- The Shaping Unit
- The Pre-Sintering and Sintering Unit
- The Grinding Unit
During the visit, various production managers provided detailed explanations, offering a valuable opportunity for those working with materials – like the researchers and other scholars from this sector who made up 80% of the delegation – who have few opportunities to get a close-up look at this industry’s various practical applications.
Hall: 11 | stand: 11A78
Hall: 2 F36
Films produces tungsten carbide rolls for hot and cold rolling, for both steel and non-ferrous metals using a well established technology and paying attention to the variation of the powder mix used, depending on the final application.
Over the years, the company has developed a production technique that allows a wide range of measurements ranging from a few millimeters to the maximum diameter of 325 mm.
Customers are informed, and they are increasing their requirements, so the company redefined the production process in order to obtain products with constant quality, directly from the pressing stage.
Today, all rolls are finished with very few super-metals and, thanks to the accurate restoration of all molds, without the need of further machining to create chamfers or to reduce any surface roughness.
The study focused on managing the most critical parameters such as:
- the development of a new geometry of molds;
- the almost total elimination of the over-metals;
- a more accurate distribution of powder;
- the redesign of the pressing phase.
All this allows the elimination of roughness on the surface and the realization of a product whose weight remains so constant to ensure a good balance of the raw roll.
Only the strong spirit of collaboration between the R & D Laboratory and the Films Technical Office, coupled with the ability to perceive and sharpen the needs of the end customer, have made this possible.