Aluminium Alloy Foundry

Foundry shop

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Sand mould casting is applicable above all for smaller series, i.e. 1000 pcs/year, and prototype casting thanks to low costs for the manufacture of pattern equipment and a possibility of fast design modifications. We use sand cores for casting of more complicated parts. This method is used for the manufacture of castings of 30 kg weight at maximum and maximum dimensions of 500 mm x 400 mm x 150 mm.

Gravity die casting in metal moulds is suitable for medium-lot production, i.e. 1000 up to 10000 pieces per year. Castings in metal moulds feature dimensional accuracy, fine-grained structure and significantly lower surface roughness than castings in sand moulds. We use both metal and sand cores for casting of parts with more complicated shapes. If needed, steel or brass cast inserts can be inserted into a casting. Castings of maximum weight of 30 kg can be manufactured using this method.

Low-pressure casting in metal moulds is suitable for the manufacture of larger, axially symmetrical parts with thinner walls. Slow bottom filling of a mould ensures high quality of a casting surface, with a fine structure. An advantage of this method is also high utilization of molten metal, because castings are without risers. Both metal and sand cores are used for casting of parts with more complicated shapes. Castings of maximum weight of 40 kg can be manufactured using this method. After casting, all products go to the finishing shop, where they are finished (cutting-off and surface grinding).

Core room

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Sand cores manufactured by COLD BOX method are used for production of demanding castings. A shooting machine for the manufacture of these cores was put into operation in 2009. Since then, our foundry production is self-sufficient in all directions.

For core making we use polyurethane resin core boxes and silica sand of 0.27 mm granularity. In order to improve a casting surface, graphite coatings are applied on cores. This allows making cores of weight from 0.05 kg up to 25 kg.

Mechanical processing shop

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We apply a modern and innovative approach to the manufacture of parts. We use the most up-to-date mechanical processing technologies. The mechanically processed materials are above all aluminium alloys, but also iron, cast iron and various types of steels including tool steel. We can also process parts complicated in shape according to 3D data. Our modern 3D measuring centre enables to manufacture parts of higher precision. We are able to lathe-turn parts up to a diameter of 320 mm and to mill parts up to outer dimensions of 800 mm x 600 mm.

Cooperation

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Within a cooperation, we accept additional orders for:

• X-ray testing
• 3D measurements
• CNC machining (milling and lathe-turning)
• Conventional milling and lathe-turning
• Drilling and threading
• Assembly and completing
• Chemical analyses of materials
• Tensile Test
• Heat treatment of Al castings
• Vacuum impregnation
• Electric arc welding and TIG welding