Machinable Metal Insert in Amorphous Alloy for Precision Connections
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Solution Overview
Problem
Bulk-solidifying amorphous alloys are difficult to machine due to their hardness, making it challenging to create precision machined connection mechanisms, especially when they need to be assembled with other parts that may have varying materials and designs.
Innovation Solution
A method involving forming bulk-solidifying amorphous alloy parts with cavities or protrusions, where machinable metals with lower hardness are inserted and tack welded, allowing for the creation of connection mechanisms through machining, enabling metal-to-metal bonds and facilitating removable connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If bulk-solidifying amorphous alloy parts are used due to their hardness and wear resistance, then the durability and life of the article is improved, but the difficulty of machining connection mechanisms increases significantly
Solution Approach 1:
The part is divided into two material systems: a bulk-solidifying amorphous alloy portion providing durability and wear resistance, and a machinable metal insert providing ease of machining for connection mechanisms. This segmentation allows each material to fulfill its optimal function without compromise.
Solution Approach 2:
The invention creates a composite structure combining bulk-solidifying amorphous alloy and machinable metal in a single integrated part. The amorphous alloy portion maintains structural integrity and durability, while the machinable metal insert enables precise connection mechanism fabrication through conventional machining operations.
2Strength
If parts are made from hard bulk-solidifying amorphous alloys, then wear resistance is improved, but the ability to form precision machined connections for removable assembly deteriorates
Solution Approach 1:
Different regions of the part have different material properties: the bulk-solidifying amorphous alloy provides wear resistance in load-bearing areas, while the machinable metal insert provides precision machinability in the connection mechanism region. This local differentiation of material quality resolves the contradiction between hardness and machinability.
3Device complexity
If amorphous alloy parts are made with larger thickness to reduce critical cooling rate requirements, then manufacturing complexity is reduced, but the ability to machine connections worsens due to increased hardness
Solution Approach 1:
The part is segmented into an amorphous alloy portion that can be cast at optimal thickness for durability, and a separate machinable metal insert that provides ease of machining for connections. This allows the amorphous alloy to be made at thicknesses optimized for its casting process without being constrained by machinability requirements.
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 allows for the efficient and cost-effective formation of connection mechanisms in bulk-solidifying amorphous alloy parts, accommodating various designs and materials, and enabling easy replacement of damaged parts, thus enhancing the assembly and durability of complex components.
Implementation Method 1
insert casting or tack welding into the at least one cavity a machinable metal having a hardness lower than the bulk-solidifying amorphous alloy and being capable of forming a metal-to-metal bond with the at least one contact surface of the cavity
Data Source
AI summary
Provided in one embodiment is a method of forming a connection mechanism in or on a bulk-solidifying amorphous alloy by casting in or on, or forming with the bulk-solidifying amorphous alloy, a machinable metal. The connection mechanism can be formed by machining the machinable metal.