A method for making a blank using a profiled platen
By using a non-circular die blanking method, the problem of mismatch between the forging profile and the rolling die was solved, achieving a good match between the forging profile and the rolling die, reducing material waste and metal flow, and ensuring the forming quality of the forging.
CN116890082BActive Publication Date: 2026-04-07GUIZHOU AVIATION TECHN DEV CO LTD
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Patent Information
- Application Number
- CN202310924844.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-07-26
- Publication Date
- 2026-04-07
- Estimated Expiration
- 2043-07-26
AI Technical Summary
Technical Problem
Traditional billet preparation methods result in mismatched forging profiles, leading to material shortages in some areas after final rolling, which fails to meet machining dimensional requirements, and the metal flow is random.
Method used
A method for preparing blanks using irregularly shaped tamperes is adopted. Three types of irregularly shaped tamperes are designed and generated according to the principle of equal volume distribution, including flat, inclined, and irregularly shaped tamperes. The tamperes are enlarged through specific steps to match the final profile of the forging.
Benefits of technology
Ensure the forging surface matching, reduce metal flow, improve rolling die fit, meet final rolling forming requirements, and reduce material waste.
✦ Generated by Eureka AI based on patent content.
Abstract
The application discloses a method for manufacturing a blank by using a special-shaped beating plate, wherein the special-shaped beating plate is composed of a handle part and a compacting part, and the profile of the special-shaped beating plate is generated according to the profile of a forged piece after final rolling according to the equal volume distribution principle. The blank manufacturing method comprises the following steps: a first beating plate is used to press the outer diameter surface of a blank, and a mandrel is arranged in parallel on the inner diameter surface of the blank and is used to expand the hole of the blank; one end of the blank is raised, a second beating plate is used to press the outer diameter surface of the blank, the mandrel is raised in the opposite direction of the raised end of the blank, and the inner diameter surface of the blank is expanded obliquely; at this time, the forces on the two ends of the blank are different, and the blank presents a shape of a bell mouth; the big end of the bell mouth of the blank is raised, the compacting part of a third beating plate is used to press the outer diameter of the blank, the mandrel still keeps expanding the hole obliquely, and according to the equal volume principle, the outer diameter profile of the blank is a special-shaped surface; and the flat end surface is raised to the required height, and the final rolling is performed. According to the blank manufacturing method and the special-shaped mandrel, the outer diameter surface of the blank mandrel is a special-shaped surface, and the size requirement is met.
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