Khảo sát các yếu tố hình học của bề mặt phức tạp trong kỹ thuật cơ khí

'IdGHIEN CUU • TRAO DOI

KHAO SAT CAC YEU TO HINH HOC CUA BE MAT PHOTC TAP

TRONG KY THUAT CO KHI

THE INVESTIGATION OF DIMENSION FACTORS OF COMPLEX SURFACE

IN MECHANICAL ENGINEERING

Hoang \i, Vu Nhii Nguyit

TrUdng Dai hpc Ky thuat Cdng nghiep Thai Nguyin.

TOMTAT

Tgo hinh be mat chi tiit dgt do chinh xdc cao dong vai tro quan trgng trong ki thudt ccf khi. Phdn

tich tinh todn thiet ki Id bUdc quan trgng ddu tien trong qud trinh tgo hinh mgt sdn phdm, doi vdi chi

tiet CO cdc yeu to hinh hgc kho xdc dinh. Sd df nhU vgy Id vi no quyet dinh dp chinh xdc kich thUdc, hinh

ddng vd chdt litgng be mat gia cdng. Bdi bdo ndy noi ve vdn dephdn tich thiit kivd khdo sdt cdc be mat

chi tiet hinh hgc phdc tap. Viec khdo sdt vdi sU ho trd ciia cdc phdn mem MasterCam vd MatLab. Kit qud

nghien cdu dd dUa ra gidi thudt dexdc dinh dUdc cdc thong so hinh hgc cua be mat. Cdc kit qud ndy Id

cd sd quan trgng cho qud trinh ilng dung cdng nghi CAD/CAM-CNC gia cdng cdc hi mat phdc tgp trong

ky thudt. Them vdo do, cdc kit qud nghien cdu co the dng dung trong qud trinh ddo tgo vd hd trg cho viic

lap chUdng trinh gia cdng cua qud trinh sdn xudt hien dgi.

ABSTRACT

The machined surfaces forming with high accuracy has an important role in mechanical engineering.

The designative analysis and designative caculation are the first important step in the machined surfaces

forming. This is because it determine accuraccy of surface's dimension, shape and quality. This paper presents

designative analysis and investigate complex surfaces. The investigation was aided by MasterCam and

MatLab. The results were good solutions for dettermination of geometry factors of surfaces. They were an

important establishment in the applied CAD/CAM-CNC technology for complex surfaces machining in

technique. Moreover, they will also be applied in education and morden manufacturing.

1. GlOl THifiU rat da dang. Chiing cd thi cd cau tao ddn gidn nhU

la bl mat phang, mat tru, mat cdn... hoac cau tao

Tgo hinh bl mgt chi tilt mdy dat dp chinh hinh hpc phdc tap nhU be mat cua chi tiet khudn

xac cao la yeu cdu cdp thilt trong ki thudt che tao mau due, gia cdng dp lUc, than, vd xe may, d td, may

may. Vifc khdo sat cdc ylu td hinh hpc cfla bl mat bay..Cho din nay dd cd kha nhieu nghiin cdu vl

ddng vai trd quan trpng trong vifc chpn gidi phdp tao hinh be mat chi tilt nhU phUdng phap tao hinh,

cdng nghl tgo hinh dat dUpc cac ylu cau vl dp thiet hi, chl dp cdng nghf, phan tich thiet kl, ddnh

chinh xdc hmh dang hinh hpc. Cau true hinh hpc gia thilt ke, tdi Uu hda thilt ke, thdng sd gia cdng,

cac bl mat dUpc sfl dyng trong cac nganh ky thudt dac tinh cua bl mat, vat lieu, tudi thp cua dung cu'^

T^P CHf CO KHf VI£T NAM • Sd 6 (Thdng 6 ndm 2013)