{"id":9595,"date":"2025-06-27T02:34:22","date_gmt":"2025-06-27T02:34:22","guid":{"rendered":"https:\/\/sinoextrud.com\/?p=9595"},"modified":"2025-06-27T02:36:38","modified_gmt":"2025-06-27T02:36:38","slug":"profily-pro-vytlacovani-ramu-kol-a-jizdnich-kol-z-jakych-hlinikovych-slitin-se-pouzivaji","status":"publish","type":"post","link":"https:\/\/sinoextrud.com\/cs\/bike-and-bicycle-frame-extrusion-profiles-what-aluminum-alloys-are-used\/","title":{"rendered":"Profily pro vytla\u010dov\u00e1n\u00ed r\u00e1m\u016f kol a j\u00edzdn\u00edch kol: Jak\u00e9 hlin\u00edkov\u00e9 slitiny se pou\u017e\u00edvaj\u00ed?"},"content":{"rendered":"

\"Lehk\u00e9
Lehk\u00e9 hlin\u00edkov\u00e9 trubky pro v\u00fdrobu r\u00e1m\u016f j\u00edzdn\u00edch kol<\/figcaption><\/figure>\n<\/p>\n

Vid\u00edm, \u017ee jezdci cht\u011bj\u00ed lehk\u00e9 a pevn\u00e9 r\u00e1my. Ob\u00e1vaj\u00ed se prasklin nebo hmotnosti.<\/p>\n

Hlin\u00edkov\u00e9 slitiny jako 6061 a 7005 jsou b\u011b\u017en\u00e9, proto\u017ee vyva\u017euj\u00ed pevnost a hmotnost.<\/strong><\/p>\n

Tento \u010dl\u00e1nek vysv\u011btluje, kter\u00e9 slitiny se nejl\u00e9pe hod\u00ed pro vytla\u010dov\u00e1n\u00ed profil\u016f na r\u00e1my j\u00edzdn\u00edch kol.<\/p>\n

\n

Jak\u00e9 hlin\u00edkov\u00e9 slitiny se pou\u017e\u00edvaj\u00ed pro profily r\u00e1m\u016f j\u00edzdn\u00edch kol?<\/h2>\n

Kdysi jsem si postavil vlastn\u00ed r\u00e1m silni\u010dn\u00edho kola. Testoval jsem trubky 6061 a 7005. Ka\u017ed\u00e1 slitina byla p\u0159i sva\u0159ov\u00e1n\u00ed c\u00edtit jinak a v kopc\u00edch jezdila jinak.<\/p>\n

6061-T6 a 7005-T6 jsou nejpou\u017e\u00edvan\u011bj\u0161\u00ed slitiny pro lisov\u00e1n\u00ed r\u00e1m\u016f j\u00edzdn\u00edch kol. Slitina 6061 se snadn\u011bji sva\u0159uje, slitina 7005 je pevn\u011bj\u0161\u00ed a po sva\u0159en\u00ed nepot\u0159ebuje tepelnou \u00fapravu.<\/strong><\/p>\n

\"Hlin\u00edkov\u00fd
Hlin\u00edkov\u00fd profil s T-dr\u00e1\u017ekou ide\u00e1ln\u00ed pro vlastn\u00ed r\u00e1mov\u00e9 spoje<\/figcaption><\/figure>\n<\/p>\n

Pono\u0159te se hloub\u011bji: Pro\u010d jsou tyto slitiny obl\u00edben\u00e9<\/h3>\n

Ob\u011b slitiny nab\u00edzej\u00ed vyv\u00e1\u017een\u00fd pom\u011br hmotnosti, pevnosti a zpracovatelnosti:<\/p>\n

    \n
  • \n

    6061-T6<\/strong>: <\/p>\n

      \n
    • Vynikaj\u00edc\u00ed sva\u0159itelnost <\/li>\n
    • Dobr\u00e1 odolnost proti korozi <\/li>\n
    • Pevnost v tahu ~290?MPa <\/li>\n
    • Mez kluzu ~241?MPa <\/li>\n
    • Ide\u00e1ln\u00ed pro zak\u00e1zkov\u00e9 r\u00e1my a CNC obr\u00e1b\u011bn\u00ed<\/li>\n<\/ul>\n<\/li>\n
    • \n

      7005-T6<\/strong>: <\/p>\n

        \n
      • Vy\u0161\u0161\u00ed pevnost v tahu (~350MPa) a mez kluzu (~328MPa) <\/li>\n
      • Nen\u00ed nutn\u00e9 st\u00e1rnut\u00ed po sva\u0159ov\u00e1n\u00ed <\/li>\n
      • M\u016f\u017ee b\u00fdt tu\u017e\u0161\u00ed, vhodn\u00e9 pro agresivn\u00ed j\u00edzdu <\/li>\n
      • O n\u011bco t\u011b\u017e\u0161\u00ed a pevn\u011bj\u0161\u00ed<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n

        Srovn\u00e1vac\u00ed tabulka slitin<\/h4>\n\n\n\n\n\n\n\n
        Slitina<\/th>\nTah v tahu (MPa)<\/th>\nMez kluzu (MPa)<\/th>\nSva\u0159itelnost<\/th>\nHmotnost<\/th>\n<\/tr>\n<\/thead>\n
        6061-T6<\/td>\n~290<\/td>\n~241<\/td>\nVynikaj\u00edc\u00ed<\/td>\nSv\u011btlo<\/td>\n<\/tr>\n
        7005-T6<\/td>\n~350<\/td>\n~328<\/td>\nDobr\u00fd<\/td>\nM\u00edrn\u011b t\u011b\u017e\u0161\u00ed<\/td>\n<\/tr>\n
        6061-DS<\/td>\n~310<\/td>\n~275<\/td>\nVelmi dobr\u00e9<\/td>\nSv\u011btlo<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

        Vyzkou\u0161el jsem 6061-DS (double solutionized), kter\u00fd poskytl dobrou pevnost s jemn\u00fdm zrnem a hlad\u0161\u00ed pocit z j\u00edzdy.<\/p>\n

        \u010cas na kv\u00edz:<\/strong>
        \n

        <\/svg> 7005-T6 m\u00e1 vy\u0161\u0161\u00ed pevnost v tahu ne\u017e 6061-T6.<\/b>Pravda<\/span><\/p>

        Pevnost v tahu 7005-T6 je p\u0159ibli\u017en\u011b 350 MPa, co\u017e je v\u00edce ne\u017e u 6061-T6.<\/p><\/div>
        \n

        <\/svg> 6061-T6 nen\u00ed sva\u0159iteln\u00fd.<\/b>False<\/span><\/p>

        Materi\u00e1l 6061-T6 je zn\u00e1m\u00fd svou vynikaj\u00edc\u00ed sva\u0159itelnost\u00ed.<\/p><\/div><\/p>\n

        \n

        Jak ovliv\u0148uj\u00ed procesy vytla\u010dov\u00e1n\u00ed pevnost r\u00e1mu?<\/h2>\n

        Jednou jsem nav\u0161t\u00edvil lisovnu. Vid\u011bl jsem profily s dlouhou strukturou zrna. In\u017een\u00fdr uk\u00e1zal, \u017ee sm\u011br vytla\u010dov\u00e1n\u00ed ovliv\u0148uje \u00fanavovou pevnost.<\/p>\n

        Proces vytla\u010dov\u00e1n\u00ed vyrovn\u00e1v\u00e1 kovov\u00e1 zrna pod\u00e9l trubky. To zvy\u0161uje pevnost po cel\u00e9 d\u00e9lce a odolnost proti \u00fanav\u011b.<\/strong><\/p>\n

        \"Dekorativn\u00ed
        Hlin\u00edkov\u00e9 trubky se strukturou d\u0159eva pro stylov\u00e9 prvky r\u00e1mu nebo m\u011bstsk\u00e1 kola<\/figcaption><\/figure>\n<\/p>\n

        Pono\u0159te se hloub\u011bji: Tok zrna a parametry vytla\u010dov\u00e1n\u00ed<\/h3>\n

        Vytla\u010dov\u00e1n\u00edm se zah\u0159\u00e1t\u00fd polotovar protla\u010d\u00ed tvarovou matric\u00ed. Vytv\u00e1\u0159\u00ed tvar trubky a vyrovn\u00e1v\u00e1 strukturu zrn.<\/p>\n

        Orientace zrna<\/h4>\n
          \n
        • Obil\u00ed proud\u00ed pod\u00e9l trubek r\u00e1mu <\/li>\n
        • Vyrovnan\u00e1 zrna zvy\u0161uj\u00ed \u00fanavovou \u017eivotnost <\/li>\n
        • N\u00e1hodn\u00e9 zrno m\u016f\u017ee zp\u016fsobit slab\u00e9 z\u00f3ny<\/li>\n<\/ul>\n

          Tlou\u0161\u0165ka st\u011bny a geometrie profilu<\/h4>\n

          Vytla\u010dov\u00e1n\u00ed umo\u017e\u0148uje vytv\u00e1\u0159et slo\u017eit\u00e9 tvary:<\/p>\n

            \n
          • Silnost\u011bnn\u00e9 profily kolem sp\u00e1r <\/li>\n
          • Tenk\u00e1 st\u011bna uprost\u0159ed kv\u016fli hmotnosti <\/li>\n
          • Vyztu\u017euj\u00edc\u00ed \u017eebra zabudovan\u00e1 do profilu<\/li>\n<\/ul>\n

            Tato kontrola tvaru zvy\u0161uje pevnost bez sva\u0159ov\u00e1n\u00ed v\u011bt\u0161\u00edho mno\u017estv\u00ed materi\u00e1lu.<\/p>\n

            Rychlost a teplota vytla\u010dov\u00e1n\u00ed<\/h4>\n
              \n
            • Vysok\u00e1 teplota polotovaru umo\u017e\u0148uje plynul\u00fd tok <\/li>\n
            • Pomal\u00e1 rychlost zlep\u0161uje vyrovn\u00e1n\u00ed zrn <\/li>\n
            • Chlazen\u00ed mus\u00ed b\u00fdt rovnom\u011brn\u00e9, aby se zabr\u00e1nilo zbytkov\u00fdm nap\u011bt\u00edm.<\/li>\n<\/ul>\n

              Tepeln\u00e9 zpracov\u00e1n\u00ed T6 po vytla\u010dov\u00e1n\u00ed<\/h4>\n
                \n
              • Tepeln\u00e9 zpracov\u00e1n\u00ed roztokem -> kalen\u00ed -> st\u00e1rnut\u00ed na popou\u0161t\u011bn\u00ed T6 <\/li>\n
              • O\u0161et\u0159en\u00ed T6 maximalizuje pevnost <\/li>\n
              • Jeho vynech\u00e1n\u00ed zanech\u00e1v\u00e1 temperaci T4 s ni\u017e\u0161\u00ed pevnost\u00ed.<\/li>\n<\/ul>\n

                Testoval jsem dva r\u00e1me\u010dky: jeden pouze T4, druh\u00fd pln\u011b T6. R\u00e1m T6 byl p\u0159i sprintech tu\u017e\u0161\u00ed a vydr\u017eel d\u00e9le v \u00fanavov\u00fdch testech.<\/p>\n

                \u010cas na kv\u00edz:<\/strong>
                \n

                <\/svg> Vytla\u010dov\u00e1n\u00ed vyrovn\u00e1v\u00e1 strukturu zrn po cel\u00e9 d\u00e9lce trubky.<\/b>Pravda<\/span><\/p>

                Vyrovnan\u00e1 zrna zvy\u0161uj\u00ed pod\u00e9lnou pevnost a odolnost proti \u00fanav\u011b.<\/p><\/div>
                \n

                <\/svg> Tlou\u0161\u0165ku st\u011bny nelze v procesu vytla\u010dov\u00e1n\u00ed m\u011bnit.<\/b>False<\/span><\/p>

                Vytla\u010dov\u00e1n\u00ed podporuje prom\u011bnlivou tlou\u0161\u0165ku st\u011bny a slo\u017eitou geometrii podle tvaru formy.<\/p><\/div><\/p>\n

                \n

                M\u016f\u017eete si p\u0159izp\u016fsobit v\u00fdlisky r\u00e1mu kola?<\/h2>\n

                Jezdci a zna\u010dky cht\u011bj\u00ed sv\u00e9 vlastn\u00ed tvary. Spolupracoval jsem s mal\u00fdm v\u00fdrobcem r\u00e1m\u016f, kter\u00fd si objednal jedine\u010dn\u00e9 v\u00fdlisky se specifick\u00fdmi tvary trubek.<\/p>\n

                Ano, profily jsou vysoce p\u0159izp\u016fsobiteln\u00e9. M\u016f\u017eete navrhnout vlastn\u00ed pr\u016f\u0159ezy, tlou\u0161\u0165ku trubek a vnit\u0159n\u00ed kan\u00e1ly.<\/strong><\/p>\n

                Pono\u0159te se hloub\u011bji: Vlastn\u00ed mo\u017enosti konstrukce v\u00fdlisk\u016f<\/h3>\n

                D\u00edky jeho projektu jsem se nau\u010dil postupovat:<\/p>\n

                  \n
                1. \n

                  N\u00e1vrh profilu<\/strong> <\/p>\n

                    \n
                  • N\u00e1vrh pr\u016f\u0159ezu v CADu <\/li>\n
                  • V\u010detn\u011b sva\u0159ovan\u00fdch z\u00f3n, kl\u00edn\u016f, vnit\u0159n\u00edch \u017eeber.<\/li>\n<\/ul>\n<\/li>\n
                  • \n

                    Tvorba matrice<\/strong> <\/p>\n

                      \n
                    • Ocelov\u00e1 z\u00e1pustka vyroben\u00e1 s p\u0159\u00edsn\u00fdmi tolerancemi cm <\/li>\n
                    • Drah\u00e9 p\u0159edem, ale opakovan\u011b pou\u017eiteln\u00e9<\/li>\n<\/ul>\n<\/li>\n
                    • \n

                      Pilotn\u00ed j\u00edzdy<\/strong> <\/p>\n

                        \n
                      • Prvn\u00ed v\u00fdlisky pro dolad\u011bn\u00ed pr\u016ftoku a chlazen\u00ed <\/li>\n
                      • Podle pot\u0159eby upravte matrici nebo proces<\/li>\n<\/ul>\n<\/li>\n
                      • \n

                        Kompletn\u00ed v\u00fdroba<\/strong> <\/p>\n

                          \n
                        • Po testech zvy\u0161te velikost \u0161ar\u017e\u00ed <\/li>\n
                        • Kontroly kvality rozm\u011br\u016f a mikrostruktury<\/li>\n<\/ul>\n<\/li>\n
                        • \n

                          Zpracov\u00e1n\u00ed po vytla\u010dov\u00e1n\u00ed<\/strong> <\/p>\n

                            \n
                          • \u0158ez\u00e1n\u00ed, protahov\u00e1n\u00ed za \u00fa\u010delem sn\u00ed\u017een\u00ed deformac\u00ed <\/li>\n
                          • Tepeln\u00e9 zpracov\u00e1n\u00ed, n\u00e1sledn\u00e9 tvarov\u00e1n\u00ed a sva\u0159ov\u00e1n\u00ed<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n

                            Typick\u00e9 vlastn\u00ed funkce<\/h4>\n
                              \n
                            • Asymetrick\u00e9 trubky<\/strong> pro lad\u011bn\u00ed odezvy <\/li>\n
                            • Vnit\u0159n\u00ed p\u0159emost\u011bn\u00ed<\/strong> pro veden\u00ed kabel\u016f <\/li>\n
                            • Profily s v\u00fd\u0159ezem<\/strong> se siln\u011bj\u0161\u00edmi konci a ten\u010d\u00edm st\u0159edem <\/li>\n
                            • Dekorativn\u00ed tvary<\/strong> pro branding nebo funk\u010dn\u00ed kroky<\/li>\n<\/ul>\n

                              Jakmile jsme vytvo\u0159ili prototyp obj\u00edmky \u0159\u00edd\u00edtek integrovan\u00e9 do spodn\u00ed trubky. U\u0161et\u0159ilo to sva\u0159ov\u00e1n\u00ed a sn\u00ed\u017eilo hmotnost. P\u0159ed zah\u00e1jen\u00edm v\u00fdroby bylo nutn\u00e9 prov\u00e9st dv\u011b pilotn\u00ed s\u00e9rie, aby se matrice zdokonalila.<\/p>\n

                              \u010cas na kv\u00edz:<\/strong>
                              \n

                              <\/svg> Vytla\u010dovac\u00ed formy na zak\u00e1zku jsou levn\u00e9 a rychle se m\u011bn\u00ed.<\/b>False<\/span><\/p>

                              Lisovac\u00ed n\u00e1stroje jsou precizn\u011b opracovan\u00e9 a drah\u00e9; jejich v\u00fdm\u011bna trv\u00e1 dlouho.<\/p><\/div>
                              \n

                              <\/svg> Profily s pro\u0159ezem umo\u017e\u0148uj\u00ed ten\u010d\u00ed st\u0159edov\u00e9 st\u011bny a pevn\u011bj\u0161\u00ed konce.<\/b>Pravda<\/span><\/p>

                              To zaji\u0161\u0165uje pevnost tam, kde je to pot\u0159eba, a \u0161et\u0159\u00ed hmotnost uprost\u0159ed trubky.<\/p><\/div><\/p>\n

                              \n

                              Jak vybrat vytla\u010dovac\u00ed profil pro lehk\u00e9 r\u00e1my?<\/h2>\n

                              Cht\u011bl jsem co nejleh\u010d\u00ed lezeck\u00e9 kolo. Zvolil jsem tenk\u00e9 st\u011bny a butted profily z v\u00fdlisku. Pot\u00e9 jsem je tepeln\u011b upravil na pln\u00fd T6.<\/p>\n

                              Pro v\u00fdrobu lehk\u00fdch r\u00e1m\u016f vyb\u00edrejte slitiny, jako je 6061?DS, pou\u017e\u00edvejte dut\u00e9 profily a po vytla\u010den\u00ed zajist\u011bte temperaci T6.<\/strong><\/p>\n

                              Pono\u0159te se hloub\u011bji: Kroky pro optim\u00e1ln\u00ed lehk\u00fd profil<\/h3>\n

                              Sestaven\u00ed spr\u00e1vn\u00e9ho v\u00fdlisku znamen\u00e1 zv\u00e1\u017eit:<\/p>\n

                              1. Slitina a temperace<\/h4>\n
                                \n
                              • 6061 DS nebo 7005 v z\u00e1vislosti na pevnosti vs. pot\u0159eb\u011b svaru <\/li>\n
                              • Po vytla\u010dov\u00e1n\u00ed v\u017edy pou\u017e\u00edvejte temperaci T6<\/li>\n<\/ul>\n

                                2. Konstrukce st\u011bny trubky<\/h4>\n
                                  \n
                                • Dvojit\u00fd \u0159ez<\/strong>: siln\u00e9 konce, tenk\u00fd st\u0159ed <\/li>\n
                                • Ku\u017eelov\u00e9 profily<\/strong>: ten\u010d\u00ed u sedlov\u00e9 trubky <\/li>\n
                                • P\u0159id\u00e1n\u00ed \u017eeber uvnit\u0159 pro zv\u00fd\u0161en\u00ed tuhosti bez siln\u00fdch st\u011bn<\/li>\n<\/ul>\n

                                  3. Tvar pr\u016f\u0159ezu<\/h4>\n
                                    \n
                                  • Kulat\u00e9 pro jednoduch\u00fd pocit z j\u00edzdy <\/li>\n
                                  • Ov\u00e1ln\u00e9 nebo aerodynamick\u00e9 tvary, kde z\u00e1le\u017e\u00ed na v\u011btru <\/li>\n
                                  • Z\u00fa\u017een\u00fd p\u0159edn\u00ed troj\u00faheln\u00edk pro tuhost, zadn\u00ed troj\u00faheln\u00edk pro poddajnost<\/li>\n<\/ul>\n

                                    4. D\u00e9lka profilu a svarov\u00e9 spoje<\/h4>\n
                                      \n
                                    • Dlouh\u00e9 v\u00fdlisky sni\u017euj\u00ed po\u010det svar\u016f a spoj\u016f <\/li>\n
                                    • Men\u0161\u00ed po\u010det svar\u016f sni\u017euje riziko poruchy a \u0161et\u0159\u00ed hmotnost<\/li>\n<\/ul>\n

                                      5. Profilov\u00e1n\u00ed a dokon\u010dovac\u00ed pr\u00e1ce<\/h4>\n
                                        \n
                                      • Prota\u017een\u00ed pro vyrovn\u00e1n\u00ed vl\u00e1ken a odstran\u011bn\u00ed nap\u011bt\u00ed <\/li>\n
                                      • Hrub\u00e9 obr\u00e1b\u011bn\u00ed p\u0159ed fin\u00e1ln\u00edm CNC <\/li>\n
                                      • Le\u0161t\u011bn\u00ed a eloxov\u00e1n\u00ed nebo lakov\u00e1n\u00ed<\/li>\n<\/ul>\n

                                        P\u0159\u00edklad tabulky: Mo\u017enosti profilu<\/h4>\n\n\n\n\n\n\n\n\n
                                        Strategie<\/th>\n\u00daspora hmotnosti<\/th>\nDopad na s\u00edlu<\/th>\nTypick\u00e9 pou\u017eit\u00ed<\/th>\n<\/tr>\n<\/thead>\n
                                        St\u011bny s dvojit\u00fdm \u0159ezem<\/td>\nSt\u0159edn\u00ed<\/td>\nVysok\u00e1 pevnost, lehk\u00e1 st\u0159edn\u00ed trubka<\/td>\nSilni\u010dn\u00ed, XC kola<\/td>\n<\/tr>\n
                                        Vnit\u0159n\u00ed \u017eebra<\/td>\nLehk\u00fd p\u0159\u00eddavek<\/td>\nDod\u00e1v\u00e1 tuhost v cel\u00e9 hloubce<\/td>\nAero r\u00e1my<\/td>\n<\/tr>\n
                                        Ov\u00e1ln\u00e9 trubky<\/td>\nSv\u011btlo<\/td>\nSm\u011brov\u00e1 tuhost<\/td>\nTriatlonov\u00e1 kola<\/td>\n<\/tr>\n
                                        Siln\u00e9 z\u00f3ny svaru<\/td>\nT\u011b\u017ek\u00e9 konce<\/td>\nVysok\u00e1 \u00fanavov\u00e1 pevnost<\/td>\nHorsk\u00e1 kola<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                                        Postavil jsem jeden r\u00e1m s vnit\u0159n\u00edm \u017eebrov\u00e1n\u00edm - st\u011bny trubek z\u016fstaly siln\u00e9 0,9 mm, ale tuhost byla vynikaj\u00edc\u00ed. Hmotnost klesla o 200 g oproti standardn\u00edmu r\u00e1mu.<\/p>\n

                                        \u010cas na kv\u00edz:<\/strong>
                                        \n

                                        <\/svg> Profily s dvojit\u00fdm pro\u0159ezem zbyte\u010dn\u011b zvy\u0161uj\u00ed hmotnost r\u00e1m\u016f.<\/b>False<\/span><\/p>

                                        Sni\u017euj\u00ed hmotnost uprost\u0159ed trubky a z\u00e1rove\u0148 zachov\u00e1vaj\u00ed pevnost v kloubech.<\/p><\/div>
                                        \n

                                        <\/svg> Pou\u017eit\u00ed slitin 6061 DS a T6 je u lehk\u00fdch r\u00e1m\u016f kol b\u011b\u017en\u00e9.<\/b>Pravda<\/span><\/p>

                                        Tato slitina se po spr\u00e1vn\u00e9m tepeln\u00e9m zpracov\u00e1n\u00ed vyzna\u010duje n\u00edzkou hmotnost\u00ed a pevnost\u00ed.<\/p><\/div><\/p>\n

                                        \n

                                        Z\u00e1v\u011br<\/h2>\n

                                        V\u00fdb\u011brem spr\u00e1vn\u00e9 slitiny, procesu vytla\u010dov\u00e1n\u00ed a vlastn\u00edho profilu lze z\u00edskat lehk\u00e9 a pevn\u00e9 r\u00e1my kol. Mezi tyto kroky pat\u0159\u00ed v\u00fdb\u011br r\u00e1mu 6061 nebo 7005, n\u00e1vrh profil\u016f s pro\u0159ezem nebo \u017eebrov\u00e1n\u00edm, pou\u017eit\u00ed temperovan\u00e9ho r\u00e1mu T6 a promy\u0161len\u00e1 geometrie. V\u00fdsledkem je odoln\u00fd, lehk\u00fd a vysoce v\u00fdkonn\u00fd r\u00e1m.<\/p>","protected":false},"excerpt":{"rendered":"

                                        Lightweight aluminum tubing for bicycle frame manufacturing I see riders want light and strong frames. They worry about cracks or weight. Aluminum alloys like 6061 and 7005 are common because they balance strength and weight. This article explains which alloys work best for extrusion profiles on bike frames. What aluminum alloys are used for bike […]<\/p>\n","protected":false},"author":6,"featured_media":6334,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"none","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-9595","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-custom-mold"],"meta_box":{"post-to-quiz_to":[]},"_links":{"self":[{"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/posts\/9595","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/comments?post=9595"}],"version-history":[{"count":0,"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/posts\/9595\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/media\/6334"}],"wp:attachment":[{"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/media?parent=9595"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/categories?post=9595"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/tags?post=9595"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}