Plates-formes de pr\u00e9cision conventionnelles : 6-12 mois
Ultra-haute pr\u00e9cision \/ plates-formes de grande taille : 12-24 mohs
Effets :
Les tensions internes sont en principe rel\u00e2ch\u00e9es
Stabilit\u00e9 dimensionnelle \u00e0 long terme apr\u00e8s l'usinage de finition, avec une d\u00e9formation annuelle extr\u00eamement faible
La plan\u00e9it\u00e9 peut \u00eatre maintenue de mani\u00e8re stable au grade00, grade 0
Les d\u00e9formations \u00e9videntes dues \u00e0 la contrainte sont pratiquement \u00e9limin\u00e9es.<\/li>\n\n\n\n
Apr\u00e8s l'usinage grossier : 2-4 semaines
Apr\u00e8s un usinage semi-fini : 1 \u00e0 2 semaines
Effets :
Les contraintes dues \u00e0 la coupe sont lib\u00e9r\u00e9es couche par couche, ce qui \u00e9vite les d\u00e9formations cumul\u00e9es.
Sur\u00e9paisseur d'usinage uniforme, facilitant le contr\u00f4le de la plan\u00e9it\u00e9 apr\u00e8s rectification<\/li>\n<\/ol>\n\n\n\n
IIImpact d'un vieillissement excessif (d\u00e9passant largement le cycle conventionnel)
Les 3 \u00e0 12 premiers mois : Lib\u00e9ration la plus rapide du stress, am\u00e9lioration la plus \u00e9vidente de la pr\u00e9cision18-24 mois : Tendance \u00e0 la saturation, prolongeant le vieillissement
L'am\u00e9lioration de la stabilit\u00e9 dimensionnelle est tr\u00e8s limit\u00e9e
Pas d'am\u00e9lioration suppl\u00e9mentaire de la plan\u00e9it\u00e9 finale
Ne fait qu'augmenter de mani\u00e8re significative les co\u00fbts d'inventaire et d'investissement<\/p>\n\n\n\n
Conclusion :
Le vieillissement n'est pas meilleur plus il est long ; apr\u00e8s la p\u00e9riode de stabilisation, il n'y a pratiquement pas de gain de pr\u00e9cision.<\/p>\n\n\n\n
IV. Correspondance entre le temps de vieillissement et la note d'acision (version pratique) Plus le temps de vieillissement est ad\u00e9quat, plus les contraintes internes de la plate-forme de granit sont rel\u00e2ch\u00e9es, ce qui se traduit par une pr\u00e9cision \u00e0 long terme plus stable et une d\u00e9formation moindre ; toutefois, un vieillissement excessif entra\u00eene une diminution du rendement marginal de l'am\u00e9lioration de la pr\u00e9cision et une augmentation significative des co\u00fbts. I. Cons\u00e9quences d'un vieillissement insuffisant (temps trop court) : Vieillissement naturel < 3...<\/p>","protected":false},"author":1,"featured_media":2239,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"none","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","_seopress_analysis_target_kw":"","_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_kadence_starter_templates_imported_post":false,"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"categories":[35],"tags":[],"class_list":["post-2236","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"taxonomy_info":{"category":[{"value":35,"label":"NEWS"}]},"featured_image_src_large":["https:\/\/jtlcnc.com\/wp-content\/uploads\/2026\/03\/\u6784\u4ef61-768x1024.jpg",768,1024,true],"author_info":{"display_name":"jinxing6611@gmail.com","author_link":"https:\/\/jtlcnc.com\/fr\/author\/jtlcnc\/"},"comment_info":0,"category_info":[{"term_id":35,"name":"NEWS","slug":"news","term_group":0,"term_taxonomy_id":35,"taxonomy":"category","description":"","parent":0,"count":244,"filter":"raw","cat_ID":35,"category_count":244,"category_description":"","cat_name":"NEWS","category_nicename":"news","category_parent":0}],"tag_info":false,"_links":{"self":[{"href":"https:\/\/jtlcnc.com\/fr\/wp-json\/wp\/v2\/posts\/2236","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jtlcnc.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jtlcnc.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jtlcnc.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jtlcnc.com\/fr\/wp-json\/wp\/v2\/comments?post=2236"}],"version-history":[{"count":1,"href":"https:\/\/jtlcnc.com\/fr\/wp-json\/wp\/v2\/posts\/2236\/revisions"}],"predecessor-version":[{"id":2240,"href":"https:\/\/jtlcnc.com\/fr\/wp-json\/wp\/v2\/posts\/2236\/revisions\/2240"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/jtlcnc.com\/fr\/wp-json\/wp\/v2\/media\/2239"}],"wp:attachment":[{"href":"https:\/\/jtlcnc.com\/fr\/wp-json\/wp\/v2\/media?parent=2236"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jtlcnc.com\/fr\/wp-json\/wp\/v2\/categories?post=2236"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jtlcnc.com\/fr\/wp-json\/wp\/v2\/tags?post=2236"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
Tableau
M\u00e9thode de vieillissement | Dur\u00e9e recommand\u00e9e | Niveau de pr\u00e9cision r\u00e9alisable | Sc\u00e9nario applicable
Vieillissement naturel court | < 3 moisade 1, Grade 2 | Outillage ordinaire, r\u00e9f\u00e9rences simples
Standard Natural Aging | 6-12 mois | Grade 0, Grade 00 | Contr\u00f4le de pr\u00e9cision, tables d'usinage
Vieillissement naturel ultra-long | 18-24 mois | Grade 00, Grade de m\u00e9trologie | MMT, r\u00e9f\u00e9rences optiques, \u00e9quipement pour semi-conducteurs
Inter-ProAging | Toutes les 2-4 semaines | Assure que la pr\u00e9cision ne rebondit pas | Indispensable pour toutes les plateformes de haute pr\u00e9cision<\/p>\n\n\n\n![\"\"](\"https:\/\/jtlcnc.com\/wp-content\/uploads\/2026\/01\/\u5927\u7406\u77f3\u5e73\u53f02-1-768x1024.jpg\")
<\/figure>","protected":false},"excerpt":{"rendered":"