Extrusion die design pdf

Extrusion is a process used to create objects of a fixed crosssectional profile. Computeraided design and manufacturing battelle, columbus. The aluject controller mixes and measures the precise amount of lubricant needed by the sprayerduring the extrusion stroke, as the ram and the dummy block press the billet through the container, the oxides and other impurities from the skin of the billet are accumulated in the dead metal zone. The pocket allows realising the extrusion as billettobillet. Our talented engineering department is available to assist your design engineers with the specifics in extrusion design. Some basic guidelines in profile design minimize extrusion problems. Internal deckles can be stepped to reduce the edge bead size. The project consisted of studying melt flow characteristics of plastics and how the. Choose additional resources key to the design and specification of extrusion based components.

Aluminum extrusion design 6 mistakes designers make and how. The melt from the extruder enters into the flange adapter from the breaker plate in the. Chapter 2 describes the work conducted toward applying cadcam tech. Design of extrusion heads lublin university of technology. Understand the key variables and limitations for aluminum extrusion design. In direct extrusion, the direction of metal flow will be in the same direction as ram travel. The most likely locations of thermal linesstripes and visual and physical defects due to the extrusion method can be marked in the profile drawings, if necessary. Schematic of extrusion tooling and extrusion insert detail courtesy hirschvogel, inc 6. Program approach the phasei work was completed by performing the following major tasks. Processing guidelines for the extrusion of thermoplastic. First, aluminum offers many unique properties, such as its high strengthtoweight ratio, corrosion resistance, and electric conductivity, to. Only if the entire process is considered as an integrated system, with all parts working together in common cause, can maximum efficiency be approached. Introduction the extrusion head is the processing tool that shapes the extrudate i.

The plastic extrusion design guide is intended to help you optimize your plastic profile design and drive cost out of your part. Important issues in the design of tubing tooling are the various draw ratios that define the tooling and the extrusion process. Extrusion process an overview sciencedirect topics. Aluminum extrusion design 6 mistakes designers make and. The polymer melt flows from extruder through a melt pipe at the bottom into the runners which guide it to the ports from where the spirals originate. The extrusion process is a multivariable system where product qualities e. Casexpert a process planning system with feature based. Stevenson, in comprehensive polymer science and supplements, 1989. Extrusion castools systems approach no single component of the extrusion production process should be examined or evaluated individually. It contains a description of the extrusion manufacturing process, compatible materials, and principles of design. In many cases, small design changes can drastically improve or degrade the extrudability of the product. The adapter section that connects with the output channel of the extruder 2.

Drm1 and duro f1 are matrix high speed steels mhss which are. Wallmaterial thickness uniform wall thickness wallmaterial variance radius vs. Casexpert a process planning system with feature based neural. Tooling design for tubing is a critical issue in tubing extrusion but there is limited useful information available.