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LAZER YORDAMIDA YUZANI QATTIQLASHTIRISH ORQALI METALL TISHLI G‘ILDIRAKLARNING YEYILISHGA QARSHILIK XUSUSIYATLARINI OSHIRISH

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MAQOLA ANNOTATSIYASI

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Mazkur maqolada sirtni lazerli mustahkamlash (SLM) samaradorligi metall tishli g‘ildiraklarda yeyilishga bardoshlilikni oshirish usuli sifatida tadqiq etilgan bo‘lib, ushbu usul an’anaviy toblash va induksion usullar bilan taqqoslangan. SLM jarayonida tishli g‘ildirak sirtini tezkor isitish uchun yuqori energiyali lazer nurlaridan foydalaniladi. Buning natijasida qattiqlik va yeyilishga bardoshlilikni oshiruvchi mikrostrukturaviy o‘zgarishlar sodir bo‘ladi. Tajribalar ikkita JIS-SCM415 va JIS-S45C markali oddiy po‘lat tishli g‘ildirak, kerakli qattiqlik profiliga erishish uchun optimallashtirilgan lazer parametrlari yordamida o‘tkazildi. Natijalar shuni ko‘rsatdiki, eng yaxshi qattiqlashuv 1 000 Vt lazer quvvati, 100 mm/sekund skanerlash tezligi va 1 mm nuqta o‘lchami bilan olib borilganda, sirt qattiqligi 672 HV va yadro qattiqligi 502 HV miqdorga erishildi. Yeyilishga bardoshlilik sinovlarida lazerli mustahkamlangan tishli g‘ildiraklarning yeyilish tezligi yangi an’anaviy usulda ishlov berilgan tishli g‘ildiraklar bilan taqqoslanganda, vazn yo‘qotish soatiga 10–12 mg miqdorni tashkil etdi. Tadqiqot natijalariga ko‘ra, lazerli ishlov berish tishli g‘ildiraklarning yeyilishga bardoshliligini sezilarli darajada yaxshilaydi, minimal buzilish va qattiqlashish chuqurligini aniq nazorat qilish imkonini beradi. Bu esa, o‘z navbatida, tishli mexanizmlarning uzoq ishlashi va yaroqlilik muddatini oshirish uchun an’anaviy mustahkamlash usullariga qaraganda istiqbolli usullardan sanaladi.

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Teglar

# износостойкость# surface treatment# wear resistance# laser surface hardening# metal gears# microstructural changes# gear steels# hardening parameters# wear testing# gear material properties# lazerli yuzani mustahkamlash# yeyilishga bardoshlilik# metall tishli g‘ildirak# mikrostrukturaviy o‘zgarish# tishli po‘latlar# qattiqlik parametrlari# yeyilishga sinash# tishli material xususiyatlari# sirtga ishlov berish# лазерная поверхностная закалка# металлические зубчатые колёса# микроструктурные изменения# зубчатые стали# параметры закалки# испытания на износ# свойства материала зубчатых колё# поверхностная обработка

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Foydalanilgan adabiyotlar

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