Ceramic Blank Support Body With Adhesive-Retaining Inner Surface
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Solution Overview
Problem
Existing support bodies for ceramic blanks in milling machines lack a secure and stable method for positional fixation using adhesive agents, which can be challenging due to the need for precise positioning and the risk of adhesive agent flow before curing.
Innovation Solution
A support body with a hollow cylindrical geometry featuring pocket-shaped depressions and elevations on its inner circumferential surface to accommodate and retain adhesive agents, ensuring stable fixation and preventing adhesive flow, made from fiber-reinforced plastic with a thermal expansion coefficient matched to the ceramic blank.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a simple holder structure is used to mount a ceramic blank, then the device complexity is reduced, but the positional accuracy and stability of the blank during machining deteriorates
Solution Approach 1:
The holder features localized structural variations including depressions and elevations on the inner circumferential surface at specific positions to accommodate adhesive agents, while maintaining a simple overall hollow-cylinder geometry. This localized complexity provides secure adhesive retention only where needed, ensuring positional accuracy without requiring complex structures throughout the entire holder.
2Reliability
If adhesive agent is introduced into a narrow gap between blank and holder, then the mounting reliability improves, but the ease of operation deteriorates due to difficulty in introducing and retaining adhesive
Solution Approach 1:
The holder is pre-formed with depressions and elevations on its inner circumferential surface before the adhesive introduction step. These pre-formed features create ready-made reservoirs that guide and retain the adhesive agent as it is introduced into the gap, making the adhesive introduction process easier while ensuring reliable mounting.
Solution Approach 2:
The depressions and elevations act as intermediary structures between the adhesive agent and the narrow gap. They provide intermediate storage zones that facilitate adhesive introduction and retention, mediating between the ease of application and the requirement for reliable bonding in the narrow gap.
3Loss of substance
If the holder wall is made thin to reduce material usage, then the manufacturing cost decreases, but the strength and stability of the holder deteriorates
Solution Approach 1:
The holder employs localized structural features (depressions and elevations) that concentrate material strength where needed for adhesive retention and structural stability, while maintaining thin walls in other areas to minimize material usage. This creates optimal strength-to-material-ratio by placing material only where functionally required.
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
The solution enables secure positional fixation of ceramic blanks during machining, maintaining stability and ensuring adequate adhesive retention for curing, while minimizing deformation and ensuring consistent gap width for precise processing.
Implementation Method 1
the blank is bonded to the support body by means of a binding agent
Implementation Method 2
made from fiber-reinforced plastic with a thermal expansion coefficient matched to the ceramic blank
Data Source
AI summary
The invention relates to a support body for a blank, whereby the support body possesses a receiving opening for the blank that is surrounded by an inner circumferential surface, which terminates in an upper and a lower edge, and whereby a blank fixed in position within the support body is bonded to the latter by means of an adhesive agent. In order to be able to easily introduce the adhesive agent into a gap between the blank and the support body it is intended that the inner circumferential surface possesses at least one depression and/or elevation extending to accommodate the adhesive agent.