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[CN 201710084023.9] Free Forging Method for Oversized and Overweight Forgings by Using 3 Tons Free Forging Hammer
[CN 201710084023.9] Free Forging Method for Realizing Super Large and Overweight Forgings with 3 Ton Free Forging Hammer Title: Free Forging Method for Realizing Super Large and Overweight Forgings with 3 Ton Free Forging Hammer Application Number: CN 201710084023.9 Applicant: Harbin Steam Turbine Factory Co., Ltd. Application Date: 2017-2-16 Patent Type: Invention Application for Realizing Free Forging Method for Super Large and Overweight Forgings with 3 Ton Free Forging Hammer, It and Overweight Forgings. The purpose of the present invention is to solve the existing use of 3 tons of free forging hammer in forging production, the curvature of the forging can not meet the process requirements at all, when the forging is bent to a certain angle, the forging will be stuck on the bumper of the equipment, making the bending impossible; It is not easy to control the problem of deformation. Free forging method: 1. drawing forgings and calculating blank size; 2. drawing to obtain long forgings; 3. large-angle bending forming to obtain half-ring rough forgings; 4. small-angle bending forming to obtain rough forgings; 5. forgings are trimmed to obtain diaphragm body forgings. Advantages: The qualified rate of forgings is 100. The invention is mainly used to use 3 tons of free forging hammer forging super large overweight forgings.
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