Ikuti berita terbaru Linqi Ultrasonic, tren industri, dan wawasan teknis
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The amount of flash is set by melt volume; its direction is set by geometry. The parting line, the step and the flash trap fix the appearance question on the drawing.
If the halves are misaligned the joint runs wide on one side and tight on the other. Locating features should touch before the weld faces, and should absorb assembly variation rather than locating, carrying load and fusing all at once.
A grade designation is only a name. Molecular weight, filler distribution, pigment, mould release and regrind can all move between batches, and ultrasonic welding is more sensitive to that than moulding is.
More interference is not better and less clearance is not better. What decides the value is whether the tool can hold it consistently and how the fixture supports the part.
Strength comes from the area that actually fuses, not from how long the joint looks. Corners, interrupted sections and fibre-occupied regions do not count, and getting it wrong throws off the power selection too.
Serat karbon lebih keras daripada serat kaca dan lebih kasar terhadap permukaan kerja. Penyebab kesulitan pengelasannya sama dengan serat kaca, tetapi umur horn, sifat hantar listrik dan debunya khas karbon.
Bahan tahan api tidak ikut serta dalam penyatuan dan kandungannya tidak sedikit, sehingga ia setara lapisan penghalang di antarmuka. Batas atasnya ditentukan material, jadi rancanglah menurut apa yang benar-benar dicapai grade tahan api.
PLA dan resin dapat dikompos sejenis bisa dilas, tetapi getas, rentang lelehnya sempit dan berbeda antarbatch. Jebakan sebenarnya bukan pada pengelasan, melainkan pada kenyataan bahwa setelah dilas komponen tetap harus memenuhi persyaratan penguraiannya.
PVC mudah meleleh; masalahnya ia terurai bila terlalu panas dan produk penguraiannya menyerang horn serta jig. Mengendalikan energi, memendekkan siklus dan membersihkan sesuai jadwal jauh lebih penting daripada menaikkan parameter.
