Method for forging large irregular shapes in a closed-die operation in a conventional open-die press

摘要

A method and apparatus for forging large irregular shapes in a closed- die operation, particularly for forging a blank to be machined to form a fluid end piece of a pump. The blank has a substantially rectangular parallelepiped body and a block projecting sideways from the body. The apparatus has a die opening of a shape to form the blank. In a single operation in a conventional open-die press a heated workpiece is upset and a portion squeezed sideways to form the block.