In this paper the effects of the deformation strengthening mechanism on mechanical attributes are evaluated (toughness is not treated) during cold drawing of a corrosion￾resistant austenitic steel NITRONIC 60. Experimental evidence indicates that the technological factors of cold working by drawing significantly affect both the intensity ...

By Faik Uzunović, Omer Beganović, Sead Spužić

Final product of the cold forming process gain many advantages that are mostly produced by strengthening of the material in the process. Those advantages are primarily explained as improving mechanical characteristic of the work material. Forward cold flow forming is among those processes and it is mostly related to (forming) shaping...

By Sabahudin Ekinović, Ibrahim Plančić, Edin Begović, Himzo Đukić, Branka Muminović

Steels for screws, nuts and rivets are usually low carbon steels, carbon steels or quenched and tempered low alloy steels. From these are required precisely defined strength properties, hardness and toughness, which determine the so called class strength of screws. This paper describes the thermal treatment of hexagonal screws with s...

By Jusuf Duraković, Mirsada Oruč, Sulejman Muhamedagić, Raza Sunulahpašić, Almaida Gigović-Gekić

The paper presents an application of the Additive Manufacturing (AM) technology using the Objet 3D Printer to develop femoral component of total knee endoprosthesis patterns for investment casting process. The goal of the paper is to outline the manufacturing technology intended for prototype production with the use of PolyJet technology and invest...

By Aleksandar Rajic, Slobodan Stojadinovic, Dorian Nedelcu, Ljubica Lazic Vulicevic

For the production of vertically perforated bricks with very good thermal insulation properties it is necessary to increase porosity of ceramic body. The most effective way to achieve this is the addition of organic substances into the clay mass. During the firing process combustion of these substances occures, leaving behind a large number of fine...

By Adnan Mujkanovic, Marina Jovanović

A coal dust is added to brick clay mainly to save energy and increase porosity. This paper examines the influence of coal from Coal mine "Kakanj", in the amount of 10% and 20%, on some physical and technological properties of brick clay "Rapajlo". The impact of coal on the plasticity of clay, and the characteristics of dried and fired samples was i...

By Marina Jovanović, Adnan Mujkanovic, Mirsada Rizvanovic, Merima Brkić

One of the first tension resistant materials that is used to build structures is wood. It is highly anisotropic material. The strength of wood in the fiber direction is relevant for dimesioning. From the economic point of view necessity of strengthening the damaged wooden structures is questionable. Given that this is a light material, suitable for...

By Amir Čaušević, Nerman Rustempašić, Nadira Kuljuh-Bolić

For exceptional demands of product quality, modern technological solutions allow that the nutritive value of food products, produced using a different technological processes, preserve and extend with application of a modified atmosphere. Using a combination of modified amtosfere, depending on the barrier properties of packaging materials, allows c...

By Ajka Aljilji, Dragana Živković, Nebija Aljilji

Manufacture of pulp for making paper and paperboard in the world has a rapid growth. The need for paper and cardboard is constantly increasing, but the limiting factor is the lack of raw materials - biomass. As a result, there has been a technological orientation to new types of raw materials, which, along with a modified chemical processing proced...

By Salim Ibrahimefendić, Amra Tuzović, Marija Garić

Some laboratory enquire has been made on relating correlation main physical-mechanical characteristics of prepared leather where in producing process use mineral as well as herbal tans. It’s well known that use of herbal tans in producing leather has justification in aspect of environment protection issues and health protection. Experimental ...

By Šefkija Botonjić, Merima Haseljić