ToolingTooling - pressmaintmanual.com

Tooling - Chapter 3 3-1 ToolingToolingToolingTooling This chapter sponsored by Best Company This chapter covers the semi-permanent press tooling: dummy blocks, stems, containers, container liners, and their repair, maintenance, and lubrication. Fixed Dummy Blocks Most aluminum extrusion presses are now fitted with fixed dummy blocks. They offer several advantages over loose dummy blocks: Operator involvement is virtually eliminated. Expense and downtime due to a handling system for loose dummy blocks are eliminated. Slightly longer billets are possible (typically about 2 inches [50mm] longer. Butt disposal is simplified. Eliminates damage to front of container from loose dummy blocks. Eliminates the risk of extruding without a dummy block or having dummy block fall over in the loader.)

Tooling - Chapter 3 3-4 • Acetylene torches and pneumatic tools should never be used to clean the sealing face. • Container travel should be slowed prior to impacting the die face.

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