Wɔde afã horow a wɔde injection molded di dwuma kɛse wɔ nnɛyi nneɛma a wɔyɛ mu sɛ nneɛma a egyina polymer- so. Wɔn nhyehyɛe no nya nneɛma a wɔyɛ no dwumadi, sɛnea wɔyɛ no yiye, ne ɛka a wɔbɔ so nkɛntɛnso tẽẽ. Ɛnyɛ sɛ nhyehyɛe a ntease wom ma ɛyɛ yiye sɛ wɔde injection molding nko, na mmom ɛma afiri no mfiridwuma ne sɛnea ɛte nso tu mpɔn.
Injection molded fã structural design di kan ɔfasu thickness uniformity. Ɔfasu no mu duru a ɛnteɛ betumi ama onwini no so atew a ɛnkɔ so pɛpɛɛpɛ, na ɛde sintɔ ahorow te sɛ warping ne sink marks aba. Wɔtaa kamfo kyerɛ sɛ wɔbɛkɔ so akura ɔfasu no mu duru mu wɔ 0.5-4mm mu, na wɔama adwennwen nkyekyɛmu ayɛ papa denam nsakrae nkakrankakra anaa mpampam so. Sɛ wɔde mpampam si hɔ yiye a, ebetumi ama ɔfã bi ayɛ den kɛse bere a wɔkwati sɛ ɛbɛtew esiane sɛ ɛyɛ den wɔ baabiara nti.
Mold draft angle yɛ parameter a ɛho hia wɔ injection molded fã nhyehyɛe, tẽẽ nkɛntɛnso mold bue efficiency ne product nokwaredi. Wɔkamfo kyerɛ sɛ wɔmfa mframa a ɛtwetwe a ɛyɛ digrii 0.5 -1.5 digrii mma abɔnten so nneɛma, bere a wɔkamfo kyerɛ sɛ wɔmfa mframa a ɛtwetwe no kɛse (a mpɛn pii no ɛyɛ kɛse sen anaasɛ ɛne digrii 2 yɛ pɛ ) mma mfinimfini nneɛma no na ama nkuku no akɔ so ayɛ mmerɛw. Bio nso, ntwea a ɛyɛ kurukuruwa betumi atew adwennwen so yiye. Anyɛ yiye koraa no, wɔkamfo kyerɛ sɛ wɔmfa radius a ɛyɛ 0.3mm mma ntwea so.
Sɛnea wɔahyehyɛ apon no ne mframa a wɔde fa mu no nso ho hia yiye. Ɛsɛ sɛ wɔyɛ nsakrae wɔ mmirikatufo titiriw, nkorabata mmirikatufo, ne aponkɛse no nsusuwii mu sɛnea nneɛma a ɛsen te mu na wɔakwati sɛ ɛbɛhyɛ mu ma anyɛ yiye na wɔansi sin. Mpɛn pii no, wɔhwɛ mframa a wɔde fa mu no mu dɔ so wɔ mm 0.02 kosi 0.05 na amma mframa ankyere, na ebetumi ama ɔhyew anaasɛ nneɛma ho ayɛ na.
Wɔ mfiridwuma mu no, ɛsɛ sɛ afã horow a wɔde injection molded no nhyehyɛe nso susuw nhyiam ahwehwɛde ahorow ho, te sɛ pre-embedded design a ɛfa fasteners, threaded inserts, ne structures afoforo a ɛka bom ho. CAE simulation analysis betumi adi kan ahwɛ sɛnea ɔdan no tumi yɛ nkuku, na ɛtew nkuku sɔhwɛ ho ka so. Ne tiaatwa mu no, nyansahu mu injection molded part structural design ne ade titiriw a ɛbɛma adwumayɛ, ɛka, ne adwini kwan a ɛkari pɛ.
