The extrusion process is used to create objects of a fixed, cross-sectional profile. During the extrusion process, a material is extruded (pushed through) a die made to form the desired cross-section.
The process begins by heating the stock material (for hot or warm extrusions). The heated material is then loaded into the container in the press. A dummy block is placed behind the material. A ram then presses against the material to push it through the die. Afterward the extrusion is stretched in order to straighten it. If better properties are required, then the extrusion may be heat treated or cold worked.
The extrusion ratio is defined as the starting cross-sectional area divided by the cross- sectional area of the final extrusion. One of the main advantages of the extrusion process is that this ratio can be very large while still producing quality parts.
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Industries We Serve
High-quality castings, extrusions, machining, forgings and some stampings for a variety of commercial and consumer lighting products
Industry-leading castings, forgings, and machinings for common automotive parts including housings, manifolds, connectors, transmission components
Industry leading & proprietary processes that deliver cost-effective manufacturering & global supply chain services
Win-win solutions for several electrical Tier I & II customers including precision castings, forgings, machinings, stampings & more
Partner with many Tier I manufacturering customers & provide castings, forgings, machinings, stampings for electric vehicles
Advantages of Extrusion Molding
- Low cost per manufactured part
- Great flexibility of operation
- In hot extrusion, post execution alterations are easier due to product still in the heated condition
- Continuous operation
- Several types of raw materials can be used
- Good mixing (compounding)
- Surface finish obtained is good
- Good mechanical properties obtained in cold extrusion
Materials used for Extrusion