Mhando dzehuni
Woodworking inonyanya kuitwa nemichina yekugadzira mapuranga. Zvishandiso zvekuveza nemaoko zvinoshandiswa sezviyamuro zvekuunganidza uye kutyaira zvigadzirwa mumagrooves, etc. Kune marudzi anotevera ekugadzira huni pamichina: kucheka, kucheka, kugaya, kufinha, kuchera, planing uye sanding (Fig. 1). Masaha, denderedzwa nemapoinzi masaha, mapanga ekucheka nekukwesha, makucheka ekugaya, zvibooreso, cheni, machisero uye sandpaper anoshandiswa semidziyo yekucheka, yekucheka nekukwesha.
Picture 1 - Mhando dzekugadzira huni: a - kucheka; b - kucheka; c - kugaya; d - kugaya; e - kubvisa; f - kugaya.
Mablades nemakona awo
Zvishandiso zvekucheka, izvo zvinoshandiswa pakugadzira huni, gara uine imwe kana akawanda wedges. Saka, semuenzaniso, mazino emapuranga, denderedzwa uye bhendi saws, mashizha emapanga ekucheka, mazino ekucheka kwekucheka, nezvimwewo vane chimiro chemashizha akapinza anoita kucheka. Kuti mashizha aya akaita seweji akwanise kutema huni nekubudirira kwepamusoro uye kuti ape hutano hunogutsa hwekugadzirisa, zvakakosha kuti ave pane imwe kona kune huni hwehuni uye ave nehumwe hukuru uye chimiro.
Pazvishandiso izvi zvekucheka, izvo zvinoshandiswa pakugadzira matanda, pane mabheji anotevera: kona yekucheka, iyo inoratidzwa nebhii δ, kona inopinza - nebhii β, kona yepamberi - nebhii γ, kona yekumashure - netsamba α. Huwandu hwekona yekumashure uye kona yekurodza nguva dzose inopa konaδ = α + β(muonde.2)
Mufananidzo2-Angular zvinhu zveblade.
Kuti uwane hutsanana hwepamusoro hwehuni hwekugadziriswa kwehuni uye kushandisa sediki basa sezvinobvira pakucheka, zvinodikanwa kusarudza yakanyanya kunaka kona yekucheka, inopinza angle, pamberi uye kumashure yekucheka angle zvichienderana nerudzi rwehuni, hunyoro hwayo uye nzira yekucheka. Sekona diki yekurodza, kona ye30°; kona yekutungamira kwekufamba kwebanga kana kona yekumashure inotorwa10-15°; kona yekucheka inotorwa45-74°.
Kucheka nzira yakananga kune fibers
Maererano negwaro rekucheka maererano nematanda ehuni, pane zvitatu zvakakosha zvekucheka: mberi, longitudinal uye transverse (fig. 3). Pure longitudinal, transverse uye kuchekwa kwemberi kunoitwa kashoma, nekuti banga panguva yebasa rinogara riri pane imwe kona kune tsanga yehuni.
Image 3 — Matatu makuru ekucheka huni: a - pamberi; b - kureba; c - transverse.
Kurodza chombo
Chishandiso chekucheka chinorodzwa kungave pamidziyo yekurodza yakakosha kana nemaoko, nenyaya yekuti mudziyo wekucheka, mushure mekurodza, unofanirwa kuchengetedza chimiro chepakutanga chebadza uye zvinoenderana nemakona.
Misoro inoenderana: masaha, muchina wedenderedzwa, mapuranga akapfava nematanda akaoma, matanda uye kugadzira hwindo rematanda. gonhi.