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Ceramic cutting tool with core-shell structure and preparation method of ceramic cutting tool
The invention discloses a ceramic cutting tool with a core-shell structure and a preparation method of the ceramic cutting tool, and relates to the technical field of ceramic cutting tools. According to the ceramic cutter with the core-shell structure, a shell layer of the ceramic cutter is made of a Sialon ceramic material, and an inner core layer of the ceramic cutter is made of a Si3N4 ceramic material; the content of an alpha-Sialon phase of the Sialon ceramic material is 80 to 100 percent; the phase content of beta-Si3N4 in the Si3N4 ceramic material is 80 to 100 percent; through core-shell structural design, an alpha-Sialon-rich ceramic material with high hardness and low thermal expansion coefficient is adopted as a surface layer material of the cutter, so that the front cutter surface and the rear cutter surface of the cutter have excellent wear resistance; and a high-toughness and high-strength Si3N4 ceramic material is adopted as an inner layer material of the cutter, so that the cutter body has high damage resistance. According to the preparation method provided by the invention, the Sialon-Si3N4 ceramic cutting tool with the core-shell structure is prepared by using a multi-material photocuring additive manufacturing technology, the shape precision and the surface integrity of the cutting tool can be regulated and controlled, and the cutting tool with excellent performance is finally prepared.
本发明公开了一种具有核壳结构的陶瓷刀具及其制备方法，涉及陶瓷切削刀具技术领域。本发明提供的具有核壳结构的陶瓷刀具，所述陶瓷刀具的外壳层为Sialon陶瓷材料，内核层为Si3N4陶瓷材料；所述Sialon陶瓷材料的α‑Sialon相含量为80～100％；所述Si3N4陶瓷材料的β‑Si3N4相含量为80～100％；通过进行“核壳”结构设计，采用高硬度、低热膨胀系数的富α‑Sialon陶瓷材料作为刀具表层材料，以保证刀具的前刀面和后刀面具有优异的耐磨性；采用高韧性、高强度的Si3N4陶瓷材料作为刀具的内层材料，以保证刀具本体具有高的抗破坏能力。本发明提供的制备方法，使用多材料光固化增材制造技术来制备具有核壳结构的Sialon‑Si3N4陶瓷刀具，可实现刀具形状精度和表面完整性的调控，最终制备出性能优异的刀具。
Ceramic cutting tool with core-shell structure and preparation method of ceramic cutting tool
The invention discloses a ceramic cutting tool with a core-shell structure and a preparation method of the ceramic cutting tool, and relates to the technical field of ceramic cutting tools. According to the ceramic cutter with the core-shell structure, a shell layer of the ceramic cutter is made of a Sialon ceramic material, and an inner core layer of the ceramic cutter is made of a Si3N4 ceramic material; the content of an alpha-Sialon phase of the Sialon ceramic material is 80 to 100 percent; the phase content of beta-Si3N4 in the Si3N4 ceramic material is 80 to 100 percent; through core-shell structural design, an alpha-Sialon-rich ceramic material with high hardness and low thermal expansion coefficient is adopted as a surface layer material of the cutter, so that the front cutter surface and the rear cutter surface of the cutter have excellent wear resistance; and a high-toughness and high-strength Si3N4 ceramic material is adopted as an inner layer material of the cutter, so that the cutter body has high damage resistance. According to the preparation method provided by the invention, the Sialon-Si3N4 ceramic cutting tool with the core-shell structure is prepared by using a multi-material photocuring additive manufacturing technology, the shape precision and the surface integrity of the cutting tool can be regulated and controlled, and the cutting tool with excellent performance is finally prepared.
本发明公开了一种具有核壳结构的陶瓷刀具及其制备方法，涉及陶瓷切削刀具技术领域。本发明提供的具有核壳结构的陶瓷刀具，所述陶瓷刀具的外壳层为Sialon陶瓷材料，内核层为Si3N4陶瓷材料；所述Sialon陶瓷材料的α‑Sialon相含量为80～100％；所述Si3N4陶瓷材料的β‑Si3N4相含量为80～100％；通过进行“核壳”结构设计，采用高硬度、低热膨胀系数的富α‑Sialon陶瓷材料作为刀具表层材料，以保证刀具的前刀面和后刀面具有优异的耐磨性；采用高韧性、高强度的Si3N4陶瓷材料作为刀具的内层材料，以保证刀具本体具有高的抗破坏能力。本发明提供的制备方法，使用多材料光固化增材制造技术来制备具有核壳结构的Sialon‑Si3N4陶瓷刀具，可实现刀具形状精度和表面完整性的调控，最终制备出性能优异的刀具。
Ceramic cutting tool with core-shell structure and preparation method of ceramic cutting tool
一种具有核壳结构的陶瓷刀具及其制备方法
WU SHANGHUA (author) / LI YEHUA (author) / LONG GUOQIN (author)
2023-09-05
Patent
Electronic Resource
Chinese