Totohu - he aha te mea tenei?

Ko te tukanga hangarau o te huri i te rahi me ngā āhua o ngā wāhanga e te tikanga e kore waho tenei momo o te machining, e rua totohu. Iritihia i te kupu German te auraa "wahi", "faahohonu". Hei hei atu pau, ko reira he tukanga, i roto i nei faarahi te diameter o te rua. Ka taea te whakarite te reira ki te reaming. Countersinking - he mahi hangarau, whakamana nei i roto i te te hōhā o rua, ki te whakapai ake i te kounga me te tika o ratou mata.

Te fariiraa rua

I roto i te tikanga ki te tino matau te mea kei te totohu, me whai koe i te whakaaro me pehea ki te hanga rua i roto i te taipitopito. Pea he tika he preform ki wiri i te poka o te rima te piha haapiiraa o te pū diameter 12 mm o.

Tenei ka rapua e mīhini kōhao me taputapu 3 mahi: drill, countersink me te matawai. Hangaia ia o teie mau irava te ki te hapai i, no te mea te drill reaming, tohatoha - tenei mahi tino rite ki tahi i te tahi. Matua i roto i te mahi i te workpiece te whakamahi i te poka drill, engari ka waiho nui iti iho i te hiahiatia tona diameter, mea hawhe - 6 mm.

Ko te mata ano tenei. Next, he mea e tika ana ki te ream (mahi oti) diameter 12 mm countersink. I tua atu, ka whakarato matua kōhao 7 piha pū.

I roto i te tikanga e te whakatuwheratanga 5 he piha, me te whakamahi koe i te scan. ka whakarato te reira i te rohe e tika ana te rahi me te utu - mutunga, me te machining poka mutunga. Reaming a countersinking te tikanga mahi i runga i te diameter kotahi, engari rerekē rohe rahi, a rite tahitahi whakarato he piha raro o te tika, tahua mo te whakamahinga tīpakohia ki te tika tiketike.

Reaming me countersinking

Tino maha e puputu'u ki ia atu enei ariā e tika ana ki te meka e he tino rite i roto i te ingoa ratou. Heoi, ki te te totohutanga - he tukanga i roto i i whanau te countersink i te hohonu katoa o te tukatuka countersink huaina te tihi.

He mea tika ki te hanga i rawa e countersunk huānga matenga putanga (raka, rivets, pokekore). Countersink - he rerekē i te āhua countersink o te wahi mahi taputapu mō te chamfering.

Materials me momo countersink

Just rite tetahi atu taputapu tapahi, whakarōpūtia countersink e te momo o te hanga, te āhua me te momo o te maimoatanga, me te te rauemi e hanga i nei te reira.

Mai te taputapu he pakeke nui, te tikanga kua hanga reira o maitai tere tiketike, Heoi, maha taea te kite i te countersink constructional doped (40X) me te waro (ST45) koranu.

Totohu - Kei te whakaene reira me horoi o te mata, na te maha nui o tapahi tapa te mea ano kua. kia Countersinks hiku precast ki matatahi wetekina, hiku i roto i te kotahi wahi, pana-i runga i ka pana-wāhi kapa.

A, no te tirohia i te hi'oraa o te pai, ka, o te akoranga, he nui ake te utu mea modular, engari ko te nui roa to ratou ora, mai taea te whakakapi te mata o te hapa.

Te roa me te diameter

Mai te kōhao, reaming - he āhua rite tukanga, te bit drill (rawa ki te faatura ki tōrino akoako) me whai countersink tata te taua hanganga. Ia taputapu he wahi whakairo e tika hanga he kohao i roto i te wahi.

Ko te rerekētanga ko e reira he kore mata tapahi hake countersink, engari i reira e mai e toru ki te ono niho. ngā o te mehua, me te whakairo wāhanga tona wahi mahi. tei te roa i runga i te hohonu o te rua o nga reaming. Ko te mehua - he rīpene ahopou me te mata tapahi. Tei ratou whanui i runga i te diameter o te countersink (0.8-2.5 mm), me te tiketike - 0.2-0.9 mm.

Reaming - he mahi hangarau, rite ki te reaming. Ki te he tona whakaaro ki te whanau he poka mo te whakamahinga, whiriwhiri te diameter countersink te iti, hoatu te tahua ki te mahi mutunga whakamutunga. Haunga, mai te mea i raro i taua mo te karapa i te uara tino o te ine te pū e hiahiatia ana o tenei taputapu e taea e nui ake.

I roto i te tahi atu take, reaming rua - ko te mutunga whakamutunga e hiahiatia ana mō te wāhanga ki te kātakí o 11, 12 ki te kōeke tenei. Na ka tīpakohia te taputapu e hāngai ana i runga i te rärangi, me te rahui mo te kākahu, a me ōrite ona diameter te diameter o te poka.

Engineering me te hoahoa

I roto i te tikanga e te diameter o te rua rite tika rite taea i tika, mahi uaki countersink. Ko te kupu e taea te kitea e tatou te diameter taputapu mōrahi me te mōkito e tika ana ki te whakatau i te rauemi, me tona wahi whakairo ki te mahi i te tātai o tapahi tikanga.

āhuatanga nui e pā nga uara mōrahi me te iti rawa - kua hiahiatia reira kvalitet. Hei tauira, he mea e tika ana ki te mahi i Mutu rua countersinking i runga i 85 mm diameter ki Qualitet H11. mara hāngai rua ngā tukunga tepu i te rahi iti i te 1 ki te 500 mm, mo te kounga o te piha haapiiraa 11 (mo diameters i 80 mm ki 120 mm) mara kātakí ko: uara runga - "220", me te raro - "0", i.e. 85 ²²⁰ mm. Ko te diameter mōrahi o reams rua e kore e taea nui 85,22 mm, me te iti - 85 mm.

I roto i tenei take, kātakí ahu - ko te rerekētanga i waenganui i _max D a _{min D,} i.e. ka waiho reira 0,22 mm. Ki te kōrero tatou e pā ana ki te faaipoiporaa, na ka kiia te rua diameter hē ki runga ake i te 85,22 mm me te correctable - iti iho i te 85 mm.