{"id":19716,"date":"2024-05-17T11:42:06","date_gmt":"2024-05-17T03:42:06","guid":{"rendered":"https:\/\/firstmold.com\/?p=19716"},"modified":"2025-07-15T13:33:04","modified_gmt":"2025-07-15T05:33:04","slug":"mold-inserts","status":"publish","type":"post","link":"https:\/\/firstmold.com\/fr\/guides\/mold-inserts\/","title":{"rendered":"Le r\u00f4le des inserts dans la conception des moules"},"content":{"rendered":"

Quand conception de moules<\/strong><\/a>Il arrive que certaines zones du produit soient tr\u00e8s hautes ou tr\u00e8s basses. Nous pouvons \u00e9vider une section et la remplir avec d'autres mat\u00e9riaux. L'utilisation d'un seul mat\u00e9riau pour les zones hautes permet d'\u00e9conomiser sur l'\u00e9paisseur du noyau du moule, tandis que les zones basses ou inaccessibles peuvent \u00eatre trait\u00e9es de mani\u00e8re pratique \u00e0 l'aide d'inserts.<\/p>\n\n\n\n

Qu'est-ce qu'un insert ?<\/h2>\n\n\n\n

Les inserts sont un type de composant du moule<\/strong><\/a>. Il s'agit de composants du moule incorpor\u00e9s dans le noyau du moule.<\/p>\n\n\n\n

Les inserts peuvent \u00eatre carr\u00e9s, ronds ou plats et, comme tous les composants du moule, ils exigent une grande pr\u00e9cision. En g\u00e9n\u00e9ral, ils sont fabriqu\u00e9s sur mesure en fonction des besoins du moule.<\/p>\n\n\n\n

Propri\u00e9t\u00e9s des inserts<\/h2>\n\n\n\n

Types d'inserts<\/strong>: Goupilles d'insertion, blocs d'insertion, piliers d'insertion, anneaux d'insertion, etc.<\/p>\n\n\n\n

Mat\u00e9riaux<\/strong>: SKD61, SKH51, ASP23, SKD11, etc., ou le m\u00eame mat\u00e9riau que le noyau du moule correspondant.<\/p>\n\n\n\n

Duret\u00e9<\/strong>: Sup\u00e9rieur \u00e0 50 HRC.<\/p>\n\n\n\n

Pr\u00e9cision standard<\/strong>Les dimensions des moules peuvent varier de \u00b10,01 mm, en fonction des exigences sp\u00e9cifiques de pr\u00e9cision des moules.<\/p>\n\n\n\n

Quand les inserts sont-ils n\u00e9cessaires ?<\/h2>\n\n\n\n

1. \u00c9conomie de mat\u00e9riaux de moulage<\/h3>\n\n\n\n

Comme nous le savons, les mat\u00e9riaux de moulage sont g\u00e9n\u00e9ralement command\u00e9s en blocs de forme r\u00e9guli\u00e8re. Les mat\u00e9riaux pour le noyau et la cavit\u00e9 sont d\u00e9termin\u00e9s par le point le plus \u00e9lev\u00e9.<\/p>\n\n\n\n

Par cons\u00e9quent, qu'il s'agisse du noyau ou de la cavit\u00e9, si une certaine zone est plus haute que d'autres, elle peut \u00eatre r\u00e9duite par la fabrication d'un insert, ce qui permet d'abaisser la hauteur du noyau du moule et d'\u00e9conomiser du mat\u00e9riau de moulage.<\/p>\n\n\n\n

2. Modification facile du moule<\/h3>\n\n\n\n

Pour les zones du moule qui sont fr\u00e9quemment modifi\u00e9es, des inserts peuvent \u00eatre fabriqu\u00e9s et remplac\u00e9s selon les besoins. Des inserts de rechange peuvent \u00e9galement \u00eatre pr\u00e9par\u00e9s pour des modifications futures, ce qui facilite la mise \u00e0 jour du moule.<\/p>\n\n\n\n

Par exemple, certains fabricants ODM peuvent changer la marque du produit en modifiant simplement le logo. Dans ce cas, nous pouvons transformer la zone du logo sur le moule en un insert, ce qui \u00e9vite de devoir cr\u00e9er un nouveau moule.<\/p>\n\n\n\n

3. Am\u00e9lioration de l'\u00e9vacuation des moisissures<\/h3>\n\n\n\n

L'\u00e9vacuation des moisissures est essentielle pour \u00e9viter que de l'air ne soit pi\u00e9g\u00e9 dans la cavit\u00e9 des moisissures, en particulier dans les zones de nervures plus profondes, ce qui peut entra\u00eener des d\u00e9fauts tels que bulles<\/strong><\/a>, marques d'\u00e9vier<\/strong><\/a>ou marques de br\u00fblures<\/strong><\/a> dans le produit.<\/p>\n\n\n\n

Nous pouvons ajouter des inserts aux zones n\u00e9cessitant une ventilation, en utilisant les espaces entre les inserts pour \u00e9vacuer l'air.<\/p>\n\n\n\n

4. Simplifier le traitement des moules<\/h3>\n\n\n\n

Dans les zones de nervures profondes des moules d'injection, o\u00f9 les outils d'usinage ont du mal \u00e0 acc\u00e9der, on utilise souvent l'\u00e9lectro\u00e9rosion (EDM, Electrical Discharge Machining).<\/p>\n\n\n\n

Cependant, l'\u00e9lectro\u00e9rosion est lente et inefficace, c'est pourquoi nous utilisons des inserts pour simplifier le processus et faciliter la ventilation.<\/p>\n\n\n\n

Les zones de nervures profondes n\u00e9cessitent \u00e9galement un polissage manuel fastidieux pour le d\u00e9moulage. En faisant de ces zones des inserts, elles peuvent \u00eatre retir\u00e9es et polies s\u00e9par\u00e9ment, ce qui simplifie le processus.<\/p>\n\n\n\n

5. Prolongation de la dur\u00e9e de vie des moules<\/h3>\n\n\n\n

Les zones du moule susceptibles d'\u00eatre endommag\u00e9es, telles que les zones minces ou tranchantes, peuvent \u00eatre transform\u00e9es en inserts. Nous pouvons placer les inserts endommag\u00e9s, ce qui prolonge la dur\u00e9e de vie globale du moule.<\/p>\n\n\n\n

6. Conduite Temp\u00e9rature du moule<\/a><\/h3>\n\n\n\n

En g\u00e9n\u00e9ral, les moules sont refroidis par des canaux d'eau, mais certaines zones ne peuvent pas accueillir ces canaux. Des inserts fabriqu\u00e9s \u00e0 partir de mat\u00e9riaux ayant une bonne conductivit\u00e9 thermique, comme le cuivre au b\u00e9ryllium, peuvent aider \u00e0 dissiper la chaleur dans ces zones.<\/p>\n\n\n\n

Inconv\u00e9nients de l'utilisation d'inserts dans les moules<\/h2>\n\n\n\n

Cependant, l'utilisation d'inserts pr\u00e9sente certains inconv\u00e9nients, tels que<\/p>\n\n\n\n

    \n
  1. Augmente la difficult\u00e9 de l'assemblage du moule ;<\/li>\n\n\n\n
  2. Provoque des bavures (exc\u00e8s de mati\u00e8re) autour des inserts ;<\/li>\n\n\n\n
  3. Parfois, la conception des moules et les co\u00fbts d'usinage<\/strong><\/a>augmentant ainsi les co\u00fbts globaux ;<\/li>\n\n\n\n
  4. Un trop grand nombre de structures d'insertion peut affecter la conception des canaux de refroidissement du moule ;<\/li>\n\n\n\n
  5. Un trop grand nombre de structures d'insertion peut affecter la r\u00e9sistance du noyau du moule.<\/li>\n<\/ol>\n\n\n\n

    Traitement des inserts<\/h2>\n\n\n\n

    Pour am\u00e9liorer l'efficacit\u00e9 du traitement, certains grands moules sont divis\u00e9s en plusieurs parties plus petites pour un traitement s\u00e9par\u00e9, ce qui permet de gagner du temps.<\/p>\n\n\n\n

    En g\u00e9n\u00e9ral, il existe deux types de plaquettes : les plaquettes traversantes et les plaquettes borgnes.<\/p>\n\n\n\n

    Pour certains inserts plus petits, il est possible d'utiliser la coupe de fil Y-CUT, avec une t\u00eate pour le positionnement.<\/p>\n\n\n\n

    Pour les inserts plus grands, tels que ceux de plus de 60\u00d760, des inserts aveugles peuvent \u00eatre utilis\u00e9s et fix\u00e9s \u00e0 l'aide de vis. Bien que le traitement soit relativement difficile, cela garantit la solidit\u00e9 du moule.<\/p>\n\n\n\n

    \"taille<\/figure>\n\n\n\n

    Mat\u00e9riaux d'insertion<\/h3>\n\n\n\n

    Pour les inserts sans fermetures<\/strong><\/a>Le mat\u00e9riau peut \u00eatre le m\u00eame que celui du noyau du moule.<\/p>\n\n\n\n

    \"M\u00eame<\/figure>\n\n\n\n

    Pour l'insert avec obturateurs, le mat\u00e9riau peut \u00eatre le m\u00eame que le noyau du moule mais avec une duret\u00e9 plus \u00e9lev\u00e9e de 2 degr\u00e9s, ou des mat\u00e9riaux diff\u00e9rents avec des duret\u00e9s diff\u00e9rentes.<\/p>\n\n\n\n

    \"Les<\/figure>\n\n\n\n

    Lors de la conception des t\u00eates, il faut tenir compte de la facilit\u00e9 de traitement et de DATUM pour faciliter le d\u00e9coupage du fil et l'utilisation de l'eau. traitement des machines de broyage<\/strong><\/a>. La t\u00eate est g\u00e9n\u00e9ralement con\u00e7ue comme 5\u00d72,0 mm ou 4\u00d73 mm.<\/p>\n\n\n\n

    \"La
    La forme ne peut pas \u00eatre d\u00e9coup\u00e9e directement avec le fil de d\u00e9coupe et doit \u00eatre trait\u00e9e \u00e0 l'aide d'une machine EDM.<\/figcaption><\/figure>\n\n\n\n

    La t\u00eate doit \u00eatre plac\u00e9e en position droite sur l'insert, comme indiqu\u00e9 :<\/p>\n\n\n\n

    \"La
    La forme est directement d\u00e9coup\u00e9e \u00e0 l'aide d'un coupe-fil, puis trait\u00e9e \u00e0 l'aide d'une rectifieuse.<\/figcaption><\/figure>\n\n\n\n

    La t\u00eate doit \u00eatre plus courte de 0,5 \u00e0 2,0 mm que le bord droit pour faciliter la coupe du rayon avec le fil.<\/p>\n\n\n\n

    \"Largeur<\/figure>\n\n\n\n

    Pour les inserts de forme irr\u00e9guli\u00e8re qui ne conviennent pas \u00e0 la t\u00eate de l'insert, une conicit\u00e9 de 1 \u00e0 2 degr\u00e9s peut \u00eatre appliqu\u00e9e sur le p\u00e9rim\u00e8tre pour ajuster l'insert en place, ce que l'on appelle un insert conique.<\/p>\n\n\n\n

    \"Cr\u00e9ation<\/figure>\n\n\n\n

    Lorsque les plaquettes rondes sont directionnelles, des mesures anti-rotation sont n\u00e9cessaires. La m\u00e9thode la plus simple consiste \u00e0 fraiser une plate-forme sur la t\u00eate de la plaquette, en utilisant la position plate pour emp\u00eacher la rotation.<\/p>\n\n\n\n

    \"r\u00e9glage
    r\u00e9glage de l'anti-rotation pour les plaquettes<\/figcaption><\/figure>\n\n\n\n

    Ins\u00e9rer la structure<\/strong>: Lorsque le produit pr\u00e9sente un \u00e9paulement, des nervures profondes (plus de 10 mm) ou est transparent, des inserts peuvent \u00eatre utilis\u00e9s pour faciliter le traitement, le polissage et la modification de la structure. Le noyau du moule doit avoir au moins 25 mm jusqu'au bord et utilise souvent un bon refroidissement \u00e0 l'eau.<\/p>\n\n\n\n

    Les exigences de tol\u00e9rance pour les inserts sont inf\u00e9rieures \u00e0 0,05, ce qui correspond aux inserts de fond d'\u00e9tanch\u00e9it\u00e9.<\/p>\n\n\n\n

    Certains inserts sont con\u00e7us pour \u00eatre ventil\u00e9s, avec plusieurs couches d'inserts de ventilation fix\u00e9s par des goupilles d'\u00e9jection, ou fabriqu\u00e9s en acier respirant.<\/p>\n\n\n\n

    R\u00e9sum\u00e9<\/h2>\n\n\n\n

    Les inserts sont une structure courante dans les moules, qui pr\u00e9sente des avantages \u00e9vidents malgr\u00e9 quelques inconv\u00e9nients.<\/p>\n\n\n\n

    Lors de la conception des moules, d\u00e9terminez les zones n\u00e9cessitant des inserts en fonction de la structure du produit et \u00e9vitez les inserts inutiles.<\/p>\n\n\n\n

    Il convient de noter que des marques ou des lignes d'insertion sont g\u00e9n\u00e9ralement pr\u00e9sentes sur les moules et qu'une confirmation du client est n\u00e9cessaire lors de l'examen du moule pour s'assurer que acceptation des pi\u00e8ces<\/strong><\/a>.<\/p>","protected":false},"excerpt":{"rendered":"

    Acqu\u00e9rir une compr\u00e9hension approfondie du r\u00f4le et des m\u00e9thodes de traitement des inserts de moule. (Cet article s'adresse aux amateurs de moules)<\/p>","protected":false},"author":5,"featured_media":19728,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[47],"tags":[60,61],"class_list":["post-19716","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-guides","tag-injection-mold-component","tag-mold-design"],"acf":[],"yoast_head":"\nWhat's Mold Inserts?<\/title>\n<meta name=\"description\" content=\"Gain a deep understanding of the role and processing methods of mold inserts. (This article is for mold enthusiasts)\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/firstmold.com\/fr\/guides\/mold-inserts\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"The Role of Inserts in Mold Design\" \/>\n<meta property=\"og:description\" content=\"Gain a deep understanding of the role and processing methods of mold inserts. 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