Forging Die with Dual Cavities for Extended Tool Life
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The frequent wear and replacement of dies in forging processes lead to increased downtime, costs, and variability in manufactured components due to high loads and expensive tooling requirements, necessitating a solution to extend die life and reduce tooling costs.
Innovation Solution
A forging apparatus with a die featuring two offset cavities allows for increased billet extrusions per die, reducing the frequency of die changes and overall tooling costs by enabling the use of one die for twice as many billets, with an automated process using a reciprocating extrusion punch and ram to accurately strike the billet across both cavities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a single cavity die is used for forging billets, then the die structure is simple and easy to manufacture, but the die wears quickly and requires frequent replacement
Solution Approach 1:
The die is segmented into two separate cavities within a single die structure. Each cavity can independently receive and forge a billet, allowing the die to process twice as many billets before replacement is needed. This segmentation extends die life and reduces replacement frequency while maintaining a relatively simple overall die structure.
Solution Approach 2:
The single die structure performs multiple functions by incorporating two cavities that can each independently forge billets. This multi-functionality allows the die to process more material before wear reaches unacceptable levels, reducing the frequency of die replacement while still maintaining ease of manufacture compared to multiple separate dies.
2Ease of manufacture
If a single cavity die is used, then tooling costs are lower, but production throughput is reduced due to frequent die changes
Solution Approach 1:
By segmenting the die into two cavities, the system doubles its productive capacity without requiring two separate dies. This increases production throughput while keeping tooling costs lower than would be required for multiple single-cavity dies, as only one die structure needs to be manufactured and maintained.
Solution Approach 2:
The single die with two cavities serves multiple productive functions simultaneously or sequentially, increasing overall production throughput. This multi-functional design achieves higher productivity at lower tooling costs compared to using multiple separate single-cavity dies.
3Device complexity
If a single cavity die is used, then the die design is simple, but component quality consistency deteriorates due to frequent die replacements and set-up differences
Solution Approach 1:
The die is segmented into two cavities within a single integrated structure, allowing extended usage without replacement. This maintains component quality consistency by eliminating the variability introduced by frequent die removal and reinstallation, while the die design remains relatively simple and manageable.
4Reliability
If die replacement is performed frequently, then worn dies are replaced, but production downtime increases and manufacturing efficiency decreases
Solution Approach 1:
By dividing the die into two cavities, the functional capacity of the die is doubled, extending the time between replacements. This reduces production downtime associated with die changes while maintaining reliable die functionality throughout the extended service life.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach significantly reduces die replacement time and costs, maintains production efficiency, and ensures consistent component quality by extending die life and minimizing manufacturing tolerances, while allowing for more efficient processing of billets into finished or part-finished parts.
Implementation Method 1
a ram is used to strike the billet so as to provide a, typically horizontal, force to press the metal billet into a die
Implementation Method 2
the shape of the billet deforms so as to take on the shape of the die
Implementation Method 3
the material of the billet may move from the first cavity portion to the second cavity portion
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
A forging apparatus and method is disclosed in which a die (130) has two separate cavities (140,145), each having a first cavity portion (141,146) and a second cavity portion (142,147). A billet (150) of material is received in a first cavity portion (141,146) and struck by a striking portion (162) of an extrusion punch (160) so as to be forced into the corresponding second cavity portion (142,147) to form a shaped component (155). The billet (150) of material can be placed into either of the two cavities (140,145) for extrusion. This may increase the number of extrusion operations that can be performed by a single die (130).