Les mat\u00e9riaux durs et fragiles tels que la c\u00e9ramique, le verre et les semi-conducteurs \u00e9tant largement utilis\u00e9s dans les domaines de l'optique, de l'a\u00e9rospatiale et de la micro\u00e9lectronique, on accorde de plus en plus d'attention \u00e0 leur traitement de pr\u00e9cision et d'ultra-pr\u00e9cision. Le corindon blanc \u00e0 gros grains abrasifs pr\u00e9sente les avantages d'une grande efficacit\u00e9 de traitement et d'une bonne r\u00e9sistance \u00e0 l'usure. Le corindon blanc \u00e0 gros grains abrasifs peut \u00eatre utilis\u00e9 pour le meulage ultra-pr\u00e9cis de mat\u00e9riaux durs et cassants apr\u00e8s un \u00e9barbage de pr\u00e9cision. Toutefois, apr\u00e8s le dressage, les grosses particules abrasives et la force de meulage importante ne permettent pas de r\u00e9duire les dommages sub-superficiels de la pi\u00e8ce.<\/p>\n
Pour r\u00e9soudre ce probl\u00e8me dans le processus de meulage ultra-pr\u00e9cis du corindon blanc \u00e0 haute abrasion, une m\u00e9thode de traitement laser bas\u00e9e sur la structuration de la surface du corindon blanc \u00e0 haute abrasion est propos\u00e9e, qui vise \u00e0 am\u00e9liorer le corindon blanc \u00e0 haute abrasion par la structuration de la surface de la meule. Performance de meulage. Deux sources de lumi\u00e8re laser puls\u00e9e typiques, \u00e0 savoir le laser nanoseconde et le laser femtoseconde, sont utilis\u00e9es pour mener des exp\u00e9riences de traitement laser sur la surface du corindon blanc. Le type de source de lumi\u00e8re laser affecte l'efficacit\u00e9 du traitement, la qualit\u00e9 du traitement et la graphitisation du corindon blanc. Apr\u00e8s comparaison, le nanom\u00e8tre ultraviolet LDU5 est s\u00e9lectionn\u00e9. Le laser \u00e0 seconde impulsion est utilis\u00e9 comme source de lumi\u00e8re de traitement pour les exp\u00e9riences suivantes. Gr\u00e2ce \u00e0 l'exp\u00e9rience de la technologie de traitement laser des micro-gorges du corindon blanc \u00e0 grain unique, la relation entre la largeur et la profondeur de la gorge et les param\u00e8tres de traitement laser, combin\u00e9e aux r\u00e9sultats exp\u00e9rimentaux du traitement laser des micro-gorges de la surface du corindon blanc \u00e0 gros grain abrasif, s\u00e9lectionne les param\u00e8tres de traitement appropri\u00e9s et termine le traitement de la structuration de la surface du corindon blanc \u00e0 gros grain abrasif. La technologie d'aff\u00fbtage \u00e9lectrolytique en ligne (ELID) est utilis\u00e9e pour assister la m\u00e9thode de meulage et de dressage du corindon blanc afin de dresser le corindon blanc \u00e0 gros grains abrasifs avec une surface structur\u00e9e.<\/p>\n
Poudre d'oxyde d'aluminium<\/a> doit \u00eatre \u00e9vit\u00e9e pendant le transport et la fusion. Cela affecterait la composition chimique et la couleur du sable de corindon blanc et r\u00e9duirait la qualit\u00e9 du produit. En outre, afin de r\u00e9duire le vol de la poudre d'oxyde d'aluminium au cours du processus de fusion et de stabiliser le four, il est n\u00e9cessaire que la taille des particules de la poudre d'oxyde d'aluminium soit la m\u00eame que celle de la poudre d'oxyde d'aluminium. poudre d'alumine<\/a> est aussi grande que possible, et la teneur en humidit\u00e9 est aussi faible que possible. Il est plus appropri\u00e9 d'utiliser de la poudre d'alumine semblable \u00e0 du sable comme mati\u00e8re premi\u00e8re du corindon blanc, ce qui permet de r\u00e9duire les pertes en vol, d'am\u00e9liorer les conditions de travail et d'augmenter les b\u00e9n\u00e9fices \u00e9conomiques.<\/p>","protected":false},"excerpt":{"rendered":" With the wide application of hard and brittle materials such as ceramics, glass and semiconductors in the fields of optics, aerospace, and microelectronics, more and more attention is paid to their precision and ultra-precision processing. The large abrasive grain white corundum has the advantages of high processing efficiency and good wear resistance. The large abrasive […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_templately_pack_id":"","_templately_imported_at":"","_templately_source":"","_templately_import_session_id":"","site-sidebar-layout":"default","site-content-layout":"default","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[137],"tags":[464],"class_list":["post-6640","post","type-post","status-publish","format-standard","hentry","category-alumina-powder","tag-alumina-powder-tech-service"],"yoast_head":"\n