{"id":8981,"date":"2015-09-01T16:31:04","date_gmt":"2015-09-01T16:31:04","guid":{"rendered":"https:\/\/www.mate.com\/fr\/technical-resources\/tips-techniques\/punching\/punch-die-maintenance\/factors-affecting-tool-wear\/"},"modified":"2016-06-29T11:28:00","modified_gmt":"2016-06-29T16:28:00","slug":"factors-affecting-tool-wear","status":"publish","type":"page","link":"https:\/\/www.mate.com\/fr\/technical-resources\/punch-press-resources\/tips-techniques\/punching\/punch-die-maintenance\/factors-affecting-tool-wear\/","title":{"rendered":"Facteurs affectant l’usure des outils"},"content":{"rendered":"\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Jeu<\/strong><\/td>\nUn jeu ad\u00e9quat donne une vie d’outil plus longue.<\/td>\n<\/tr>\n
Configuration des trous<\/strong><\/td>\nDes coins \u00e9troits s’usent beaucoup plus vie que des bords droits ou recourb\u00e9s, particuli\u00e8rement sur les poin\u00e7ons. Les sections \u00e9troites s’usent plus vite que les sections plus lourdes.<\/td>\n<\/tr>\n
Taille des trous<\/strong><\/td>\nLes petits poin\u00e7ons s’usent plus vite que les poin\u00e7ons plus grands.<\/td>\n<\/tr>\n
Lubrification<\/strong><\/td>\nUn lubrifiant augmente la vie d’un outil de mani\u00e8re tr\u00e8s nette.<\/td>\n<\/tr>\n
Conditions de poin\u00e7onnage<\/strong><\/td>\nConditions de poin\u00e7onnage<\/td>\n<\/tr>\n
Usure poin\u00e7on\/matrice<\/strong><\/td>\nLes poin\u00e7ons s’usent g\u00e9n\u00e9ralement plus vite que les matrices. Les matrices sont moins affect\u00e9es que les poin\u00e7ons par les facteurs d\u00e9crits plus haut.<\/td>\n<\/tr>\n
Vitesse de poin\u00e7onnage<\/strong><\/td>\nLes vitesses de poin\u00e7onnage \u00e9lev\u00e9es sont susceptibles, dans certaines conditions, de g\u00e9n\u00e9rer suffisamment de chaleur par frottement pour amollir un poin\u00e7on. Un poin\u00e7on plus mou s’use beaucoup plus vite.<\/td>\n<\/tr>\n
Vague de coupe sur poin\u00e7on<\/strong><\/td>\nLa partie du poin\u00e7on qui frappe en premier effectue la plus grande partie du travail et s’use plus vite.<\/td>\n<\/tr>\n
Conditions de d\u00e9v\u00eatissage<\/strong><\/td>\nLe d\u00e9v\u00eatissage r\u00e9gulier de la pi\u00e8ce usin\u00e9e du poin\u00e7on contribue \u00e0 faciliter cette op\u00e9ration.<\/td>\n<\/tr>\n
Mat\u00e9riau outil<\/strong><\/td>\nPour d\u00e9velopper la duret\u00e9 et la robustesse requise pour une longue vie utile, l’acier rapide HSS subit plusieurs traitements thermiques.<\/p>\n

Les poin\u00e7ons sont tremp\u00e9s deux fois pour arriver \u00e0 une duret\u00e9 de type C62 Rockwell. L’acier \u00e0 outil tremp\u00e9 (59 Rockwell C) est le mat\u00e9riau optimum pour les matrices. Il \u00e9quilibre correctement la n\u00e9cessit\u00e9 d’avoir une usure de bord maximum sans cassure.<\/td>\n<\/tr>\n

Alignement des tourelles<\/strong><\/td>\n\n

Le dommage m\u00e9canique de poin\u00e7ons et matrices est souvent interpr\u00e9t\u00e9 \u00e0 tort comme de l’usure. Un jeu serr\u00e9 d’un c\u00f4t\u00e9 d’un poin\u00e7on et d’une matrice acc\u00e9l\u00e8re l’usure \u00e0 ce point-l\u00e0.<\/p>\n

Il est tr\u00e8s important de v\u00e9rifier r\u00e9guli\u00e8rement l’alignement des tourelles afin de pr\u00e9venir des probl\u00e8mes comme une qualit\u00e9 de pi\u00e8ce ou une usure de la tourelle inacceptables.<\/p>\n<\/td>\n<\/tr>\n

Propri\u00e9t\u00e9s de la pi\u00e8ce usin\u00e9e<\/strong><\/td>\nLes propri\u00e9t\u00e9s physiques et m\u00e9caniques de la pi\u00e8ce usin\u00e9e affectent grandement la vie de l’outil.<\/td>\n<\/tr>\n
\u00c9paisseur de la pi\u00e8ce usin\u00e9e<\/strong><\/td>\nUn mat\u00e9riau plus \u00e9pais acc\u00e9l\u00e8re l’usure du poin\u00e7on.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

Jeu Un jeu ad\u00e9quat donne une vie d’outil plus longue. Configuration des trous Des coins \u00e9troits s’usent beaucoup plus vie que des bords droits ou recourb\u00e9s, particuli\u00e8rement sur les poin\u00e7ons. Les sections \u00e9troites s’usent plus vite que les sections plus lourdes. Taille des trous Les petits poin\u00e7ons s’usent plus vite que les poin\u00e7ons plus grands. […]<\/p>\n","protected":false},"author":5,"featured_media":0,"parent":8978,"menu_order":491,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-8981","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"\nFacteurs affectant l'usure des outils - Mate Precision Technologies<\/title>\n<meta name=\"description\" content=\"Jeu Un jeu ad\u00e9quat donne une vie d'outil plus longue. 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