cov PCB pawg thawj coj saib Feem ntau yog glued ua ke los ntawm ob peb txheej ntawm cov khoom siv cob, thiab cov ntaub ntawv tooj liab sab hauv yog siv los thaiv, thiab muaj 4, 6, thiab 8 txheej. Ntawm lawv, drilling occupies 30-40% ntawm tus nqi ntawm cov ntawv luam tawm Circuit Court boards, thiab ntau lawm ntau yuav tsum tau tshwj xeeb cov cuab yeej thiab laum khoom. Zoo PCB laum cov khoom siv zoo zoo cemented carbide cov ntaub ntawv, uas muaj siab rigidity, siab qhov chaw raug, qhov zoo ntawm phab ntsa zoo, thiab lub neej ntev.

Muaj ntau ntau yam uas cuam tshuam rau lub qhov qhov raug thiab qhov zoo ntawm phab ntsa ntawm qhov drilling. Tsab ntawv xov xwm no yuav tham txog cov ntsiab lus tseem ceeb uas cuam tshuam rau lub qhov qhov raug thiab lub qhov phab ntsa zoo ntawm qhov drilling, thiab muab cov kev daws teeb meem rau koj siv.
Vim li cas Fiber Proturusion nyob rau hauv lub qhov protruding?

1. Muaj peev xwm ua tau: tus nqi thim rov qab qeeb dhau.

Countermeasure: Ua kom qhov ceev ntawm kev tshem riam.

2. Tej yam ua tau: hnav ntau dhau ntawm lub laum me ntsis

Countermeasures: sharpen lub laum taw tes dua thiab txwv tus naj npawb ntawm hits ib tug xyaum taw tes, xws li 1500 hits ntawm kab.

3. Possible reasons: insufficient spindle speed (RPM)

Countermeasures: kho tus nqi pub thiab kev sib hloov ceev mus rau qhov zoo tshaj plaws, thiab xyuas qhov kev sib hloov ceev hloov.

4. Yog vim li cas: pub tus nqi yog ceev heev

Countermeasure: Txo tus nqi noj mov (IPM).

Vim li cas Rough qhov phab ntsa?

1. Yog vim li cas: tus nqi pub tau hloov ntau dhau lawm.

Countermeasure: Khaws tus nqi noj tas tas.

2. Yog vim li cas: pub tus nqi yog ceev heev

Countermeasures: Kho qhov kev sib raug zoo ntawm tus nqi pub thiab lub laum nrawm rau qhov zoo tshaj plaws.

3. Yog vim li cas: xaiv cov ntaub npog tsis raug

Countermeasure: Hloov cov ntaub ntawv npog.

4. Muaj peev xwm ua tau: lub tshuab nqus tsev tsis txaus siv rau kev xyaum ua haujlwm ruaj khov

Countermeasures: Tshawb xyuas lub tshuab nqus tsev ntawm lub tshuab drilling, thiab xyuas seb lub spindle ceev hloov.

5. Tej yam tshwm sim: txawv txav tus nqi retraction

Countermeasures: kho qhov kev sib raug zoo ntawm tus nqi retraction thiab laum ceev mus rau qhov zoo tshaj plaws mob.

6. Muaj peev xwm ua tau: qhov txiav pem hauv ntej ntawm lub taub hau zoo li tawg lossis tawg

Kev Tiv Thaiv: Txheeb xyuas qhov xwm txheej ntawm lub laum me ntsis ua ntej nkag mus rau hauv lub tshuab, thiab txhim kho tus cwj pwm ntawm kev tuav thiab nqa lub laum me ntsis.

Vim li cas lub roundness ntawm lub qhov zoo li tsis txaus?

1. Yog vim li cas: lub spindle yog me ntsis khoov

Countermeasure: Hloov cov kabmob hauv lub ntsiab ncej (Bearing).

2. Tej yam tshwm sim: eccentricity ntawm lub laum taub los yog sib txawv dav ntawm lub txiav ntug

Countermeasures: Xyuas lub laum me ntsis nrog ib tug magnification 40 zaug ua ntej mus rau lub tshuab.

Vim li cas thiaj muaj cov khib nyiab khib nyiab nrog cov kab tawg tawg pom ntawm lub rooj tsavxwm?

1. Yog vim li cas: tsis siv lub hau npog

Countermeasure: Ntxiv ib daim npog npog.

2. Yog vim li cas: tsis raug drilling tsis

Countermeasures: txo tus nqi pub (IPM) lossis nce qhov xyaum nrawm (RPM).

Vim li cas tus laum tus pin yooj yim tawg?

1. Tej yam ua tau: ntau dhau khiav tawm ntawm qhov ntxaiv

Countermeasure: Sim deflect lub ntsiab ncej.

2. Yog vim li cas: kev ua haujlwm tsis raug ntawm lub tshuab drilling

Kev tiv thaiv:

1) Xyuas seb lub siab ko taw puas raug thaiv (STIcking)

2) Kho qhov siab ntawm lub siab ko taw raws li qhov xwm txheej ntawm lub laum taub.

3) Txheeb xyuas qhov sib txawv ntawm qhov ceev spindle.

4) Drilling lub sijhawm ua haujlwm los xyuas qhov ruaj khov ntawm cov ntxaiv.

3. Yog vim li cas: xaiv cov tho khoom tsis raug

Countermeasures: Txheeb xyuas qhov geometry ntawm lub laum me ntsis, xyuas qhov kev xyaum me ntsis, thiab siv lub laum me ntsis nrog rau qhov tsim nyog nti recess ntev

4. Tej yam ua tau: xyaum tsis txaus thiab pub tus nqi siab dhau

Countermeasure: Txo tus nqi noj mov (IPM).

5. Tej yam tshwm sim: tus naj npawb ntawm laminate txheej tau nce

Countermeasure: Txo tus naj npawb ntawm cov txheej ntawm laminated board (Stack Height).