[ COMPETENCES ]
TOOLING
Containers are the most expensive tools in extrusion. The design, material and manufacture of the containers are therefore of special importance.
The Extrusion Stem must withstand the total deformation resistance of the material being extruded.The occurring extrusion loads result in very high compressive and partly bending stresses in the stem.
The pressure pads transfer the force applied by the extrusion stem to the billet. For this reason, they are always in contact with the billet throughout the extrusion process.
The Clean-out Block is designed by TRAMAK to provide maximum cleanliness on the core inner surface. The Clean-out Block flake should have a structure long enough to fit the loader and move freely along the core.
The design of TRAMAK Butt Shear Blade Knife differs according to size and alloy of presses. The cutting geometry of the traveling Butt Shear Blade is designed according to the needs of the customers.
TRAMAK EXTRUSION TOOLING SOLUTIONS
The efficiency of extrusiona depends to a large extent on the performance of the tooling, in particular on its service life. The durability of the extrusion tooling is influenced mainly by the following four factors:
• Tool design
• Material selection and heat treatment
• Tool manufacture
• Working conditions
These are clear criteria for the competence and selection of a partner. The alloy steel specialist TRAMAK is recognised worldwide as a leading supplier to the extrusion industry. TRAMAK has acquired extensive expertise over a number of years through innovation and reliable products that go far beyond the criteria in this branch of industry. Based on many years of cooperation with the extrusion industry, TRAMAK is regarded as a problem solver and partner that can be relied upon for sound advice. TRAMAK specialist engineers are internationally involved in the development and design of new tools and processes.
TOOLING OF A METAL EXTRUSION PRESS
1- Mantle
2- Liner Holder
3- Liner
4- Dummy Block
5- Stem
6- Rod or Mandrel
7- Shear Blade
8- Tool Holder
9- Bolster
10- Die Holder
11- Die
12- Billet
MATERIAL SELECTION FOR EXTRUSION TOOLING
The material selection depends primarily on the following factors:
• Material being extruded (aluminium, copper and copper alloys, steel)
• Press temperature (up to 1000°C, partly long contact times)
• Extrusion program/press sequence
• Billet dimensions
• Type of press
• Extrusion speed
• Press power
• Extruded profile
