{"id":1424,"date":"2021-04-21T13:58:46","date_gmt":"2021-04-21T05:58:46","guid":{"rendered":"https:\/\/www.symachining.com\/?p=1424"},"modified":"2021-04-21T13:58:46","modified_gmt":"2021-04-21T05:58:46","slug":"why-should-pay-attention-to-the-selection-material-of-cnc-machined-parts","status":"publish","type":"post","link":"https:\/\/www.symachining.com\/fr\/why-should-pay-attention-to-the-selection-material-of-cnc-machined-parts\/","title":{"rendered":"Pourquoi faut-il pr\u00eater attention au choix du mat\u00e9riau des pi\u00e8ces usin\u00e9es \u00e0 la CNC ?"},"content":{"rendered":"

S\u00e9lection des mati\u00e8res premi\u00e8res des pi\u00e8ces usin\u00e9es par CNC.<\/p>\n\n\n\n

Il est important pour les ing\u00e9nieurs de choisir le mat\u00e9riau des pi\u00e8ces usin\u00e9es par CNC, avant de concevoir les produits. Le choix du bon mat\u00e9riau peut vous faire gagner du temps et de l'argent lors de votre prochaine commande.<\/p>\n\n\n\n

L'ann\u00e9e derni\u00e8re, nous avons re\u00e7u une commande de produits en delrin, dont une plaque avec de nombreux trous, de dimensions 525x325x15mm. Nous avons fait de notre mieux pour l'usiner \u00e0 l'aide d'une fraiseuse CNC, mais nous avons constat\u00e9 une grande d\u00e9formation apr\u00e8s la finition. M\u00eame s'il n'y a pas de note de plan\u00e9it\u00e9 sur le dessin, mais elle est de 0,5mm, nous ne pensons pas qu'elle puisse \u00eatre utilis\u00e9e, apr\u00e8s communication avec le client, il ne peut utiliser que la plan\u00e9it\u00e9 de 0,1mm.<\/p>\n\n\n\n

\"\"<\/a>\n
Pi\u00e8ces usin\u00e9es CNC<\/figcaption>\n<\/figure>\n\n\n\n

Nous avons reconstruit cette plaque en Delrin. Nous savons que la tension interne importante du Delrin permet d'\u00e9viter les tensions et les d\u00e9formations.<\/p>\n\n\n\n

1. Nous avons proc\u00e9d\u00e9 \u00e0 un traitement thermique pour \u00e9liminer les tensions internes avant l'usinage.<\/p>\n\n\n\n

    \n
  1. L'usinage de la plaque se fait en plusieurs \u00e9tapes, avec un long intervalle de temps entre chaque \u00e9tape, afin de laisser suffisamment de temps pour refroidir la temp\u00e9rature de la pi\u00e8ce.<\/li>\n<\/ol>\n\n\n\n
    \"\"<\/a>\n
    Plaque en Delrin hors plan\u00e9it\u00e9<\/figcaption>\n<\/figure>\n\n\n\n

    Mais c'est aussi le cas la deuxi\u00e8me fois, car cette dimension de plaque, 525x325x15mm, ne permet pas d'y d\u00e9couper de nombreux trous. La plaque a \u00e9t\u00e9 d\u00e9form\u00e9e pendant le processus de fraisage des trous. Enfin, nous ne voulons pas faire perdre de temps au client, en lui montrant les faits et en lui demandant d'annuler sa commande.<\/p>\n\n\n\n

    Presque une semaine plus tard, le client nous a command\u00e9 une autre plaque similaire en aluminium, que nous avons \u00e9galement r\u00e9alis\u00e9e.<\/p>\n\n\n\n

    Lecture connexe : Choisir la tol\u00e9rance correcte pour vos pi\u00e8ces usin\u00e9es<\/a><\/p>","protected":false},"excerpt":{"rendered":"

    S\u00e9lection de la mati\u00e8re premi\u00e8re des pi\u00e8ces usin\u00e9es par CNC. Il est important que les ing\u00e9nieurs choisissent le mat\u00e9riau des pi\u00e8ces usin\u00e9es par CNC avant de concevoir les produits. Le choix du bon mat\u00e9riau peut vous faire gagner du temps et de l'argent lors de votre prochaine commande. L'ann\u00e9e derni\u00e8re, nous avons re\u00e7u une commande de produits en delrin. Il s'agissait d'une plaque avec de nombreux trous, d'une taille de 525x325x15 mm. Nous avons [...]<\/p>","protected":false},"author":2,"featured_media":1425,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[16],"tags":[],"class_list":["post-1424","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-machined-parts-material"],"acf":[],"yoast_head":"\nWhy should pay attention to the selection material of CNC machined parts? - SYM Precision Machining Manufacturer China<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.symachining.com\/fr\/why-should-pay-attention-to-the-selection-material-of-cnc-machined-parts\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Why should pay attention to the selection material of CNC machined parts? - SYM Precision Machining Manufacturer China\" \/>\n<meta property=\"og:description\" content=\"Selecting raw material of CNC machined parts. 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