Process for preparing stacked ceramic tools
Through the preparation process of laminated ceramic tools that are carved with micro-protrusions on the surface of the charging and pressurizing mold and pre-pressed, the problem of insufficient bonding strength between layers is solved, and the impact resistance and service life are significantly improved.
CN106187121AInactive Publication Date: 2016-12-07SHANDONG UNIV
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Patent Information
- Application Number
- CN201610578867.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2016-07-21
- Publication Date
- 2016-12-07
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Technical Problem
The existing laminated ceramic cutting tools have insufficient bonding strength between layers during the charging process, resulting in low impact resistance and short service life.
Method used
The preparation process of laminated ceramic tools composed of Al2O3/(W,Ti)C and Al2O3/TiC is used to carve cylindrical or hemispherical micro-protrusions on the surface of the charging and pressurizing mold, and pre-pressure is used after each layer is filled. , realize the staggered combination of layers and improve the interface bonding strength.
Benefits of technology
The impact resistance and service life of laminated ceramic tools are significantly improved, and they show higher strength and toughness than ordinary homogeneous ceramic tools.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention belongs to the field of technologies for manufacturing mechanical cutting tools, and particularly relates to a process for preparing stacked ceramic tools. The stacked ceramic tools comprise Al2O3 / (W, Ti) C and Al2O3 / TiC, surface layers are made of Al2O3 / (W, Ti) C materials, intermediate stacked layers are made of Al2O3 / TiC materials, and the Al2O3 / (W, Ti) C materials and the Al2O3 / TiC materials are alternately laid. The process is mainly characterized in that each filled layer is pre-compressed by loading compression molds once during loading, a plurality of cylindrical or hemispherical micro-protrusions are arranged on the surfaces of the loading compression molds, bonding teeth between the layers can be staggered on one another, and accordingly the interface bonding strength between the layers can be improved. The process has the advantages that the impact resistance of the stacked ceramic tools prepared by the aid of the process can be obviously enhanced as compared with ordinary homogenous ceramic tools, and the service lives of the stacked ceramic tools can be greatly prolonged.
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