Cast Joint Sealing With Mold-Formed Protrusions to Guide Sealer
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Solution Overview
Problem
Existing methods for joining cast products with a sealer result in random spreading of the sealer, leading to unnecessary consumption and potential bolt fastening failures due to inadequate control over the sealer's direction of application.
Innovation Solution
A joined assembly manufacturing method involving the use of divided molds to form a protrusion on the cast product, applying a sealer on this protrusion, and joining the counterpart component by crushing the protrusion to control the sealer's direction, thereby preventing random spreading.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a sealer is applied to join a cast product and a counterpart component, then airtight joining is achieved, but the sealer spreads radially in random directions causing unnecessary consumption
Solution Approach 1:
The mold is divided into multiple divided molds that form a protrusion at their clearance. This segmentation creates a structured path for the sealer to follow, preventing random radial spreading while maintaining airtight joining between the cast product and counterpart component.
Solution Approach 2:
The protrusion formed by the divided molds acts as an intermediary structure that guides the sealer's flow. By placing the sealer on this protrusion, the spreading is controlled along a predetermined path rather than radially in all directions, reducing unnecessary consumption.
2Manufacturing precision
If divided molds are used to form a protrusion, then sealer placement position is controlled, but mold complexity increases
Solution Approach 1:
The mold is segmented into divided molds that naturally create the protrusion at their clearance. This segmentation approach achieves precise sealer placement control without requiring additional complex positioning mechanisms, as the protrusion emerges from the basic mold division structure.
Data Source
AI summary
A joined assembly manufacturing method is a joined assembly manufacturing method for manufacturing a joining body of a cast product and a counterpart part, wherein the step of forming the cast product using a mold in which a plurality of dividing molds are combined, the step of providing a protrusion on the cast product based on a gap between the plurality of dividing molds, a step of placing a sealer on the protrusion, and a step of pressing the counterpart part against the cast product while crushing the protrusion in a state where the sealer is placed, the step of joining the cast product and the counterpart.