WTS: velg HAMANN MAGNESIO 19inch 7bh-----SOLD OUT
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  1. #1
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    WTS: velg HAMANN MAGNESIO 19inch 7bh-----SOLD OUT

    -----------SOLD OUT-----------

  2. Jayapoker
  3. #2
    Kapten
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    menunggu pic boss
     

  4. #3
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    menunggu pic, retak jadi angin bocor trus yak ...
     

  5. #4
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    masa sih di Jakarta ngk ada yg bisa betulin?
     

  6. #5
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    Utk yg minat, bisa belajar cara ngelas magnesium spt dibawah.

    Another legend wheels from OZ. modelnya yah spt OZ Chrono, Nih velg sih langka abis, jadi ya kl bisa dibetulin dgn car yg benar, trus hasilnya sangat memuaskan, harganya pasti naik lagi dan pantas dijadikan collectables! Hayo hayo siapa yg bisa......

    Processes

    Welding-magnesium is generally performed by arc processes using direct current with reverse polarity (electrode positive): weldability varies with type from excellent to limited. Wrought alloys are usually weldable more easily than certain cast alloys.

    With Gas Metal Arc Welding-magnesium (GMAW) also known as Metal Inert Gas (Mig) three modes of metal transfer through the arc are suitable, in the following sequence arranged for increasing thicknesses, with higher currents and deposition rates:

    * Short circuit mode, whereby the filler touches the work many times per second and extinguishes the arc, the metal being supplied as a sequence of drops,
    * Pulsed arc mode, where a special power supply provides a modulated current, the arc is not interrupted and the metal is transferred in an intermediate mode,
    * Spray transfer mode where the metal is transferred as a spray of tiny droplets.

    Of the three modes of Welding-magnesium, the second uses the most expensive (to buy and maintain) sophisticated equipment, and should be selected only if it is demonstrated that the other modes are not suitable and that this mode provides an economic advantage.

    Of the four most common filler metals available, some similarity with the base metal is recommended although the least costly is usually preferred where suitable. The most used shielding gas is generally argon while mixtures with helium are acceptable.

    Gas Tungsten Arc for Welding-magnesium (GTAW) also known as Tungsten Inert Gas (Tig) is more common than GMAW above: alternating current machines or direct current reverse polarity (electrode positive) power supplies, with high frequency current superimposed are used. For thin sheets both are suitable, for heavier sheets alternating current is preferred as it provides deeper penetration. Direct current straight polarity (electrode negative) is not preferred because it lacks the cathodic cleaning action.

    One of the most common Welding-magnesium applications is the repair of castings either as cast or after service. Preparation is most important and should exclude all contamination from extraneous materials. Generous bevels should be prepared for allowing full penetration, use of backing plates is recommended.

    The need for preheating when Welding-magnesium is dictated by the degree of joint restraint and by metal thickness: for thick walls and a short welding bead, it may not be required. Preheating should be performed as needed possibly in a furnace with protective atmosphere for reducing oxidation. One of the recommended procedures to minimize weld cracking is to weld from the center towards the sides (one half after the other). Thermal shocks should be avoided.

    Stress relieving is generally performed, except that for restoring properties after substantial repair welding of castings, full heat treatment is sometimes prescribed.

    Electron Beam Welding-magnesium has been used for repair of expensive casting where feasible, on alloys containing less than 1% Zinc. The relative weldability of the different Magnesium alloys is similar to that displayed for the more common arc processes.

    The conditions have to be strictly monitored because of the danger of developing voids and porosity due to the low boiling point of Magnesium and the still lower one of Zinc. A slightly defocused beam may help in obtaining sound welds.

    Laser Beam is a preferred method for Welding-magnesium because of low heat input, elevated speed and limited deformation, however the tendency of developing porosity must be considered.

    Resistance Welding-magnesium either spot or seam is performed on wrought alloys like sheets and extrusions, essentially with equipment and conditions similar to those used for aluminum. In all cases the surface should be thoroughly degreased and, if present, the chrome-pickling protective coating should be locally removed before welding.

    Although strictly speaking the feasibility of oxyacetylene Welding-magnesium cannot be ruled out, with the use of suitable fluxes, this process is not recommended because it requires complex flux neutralization procedures.

    A new page on Brazing Magnesium was
    *quoted from www.welding-advisers.com
     

  7. #6
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    Thx nih para bos2...hehehh....basically velg ini tdk pernah sy pasang ban sejak beli...wkt itu tergiur saja melihat harganya yg memang miring dan jumlah yg banyak (7)..sekarang malah makan tempat nih drmh...jdnya yah kl ada yg minat dan tertarik silahkan saja..hehehehe..untk pict. Agak telat nih para bos2...soalnya jrg didepan komp. Kalau penasaran mau lihat pict.nya bisa ninggalin email koq...lsg sy kirim pict.nya deh by mobile...thx for the attention....
     

  8. #7
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    Quote Originally Posted by vvvwww View Post
    Jual velg hamann magnesio ada 7 biji nih...buat pajangan saja mungkin soalnya konon kata si penjual dahulu sblm sy beli yg normal cuma 2 lainnya ada retak rambut dikit...sy yah sy tdk guarantee bisa dipakai atau para modcommers buat dikampak2in dengan hamann lainnya atau juga para modcommers tahu dimana reapirnya silahkan saja diangkut heheh...hrg buka 6,5jt nego....lokasi d west jakarta hub: 0816816655-02168116655

    NB:pict. Menyusul
    Ini photo2 nya bro:
    http://www.flickr.com/photos/oentoros/3876756437/
    http://www.flickr.com/photos/oentoros/3876756201/

    Good luck! Cheers!
    Motorcycle Art
     

  9. #8
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    Up upupup duluu ahhhh
     

  10. #9
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    ada spec lengkapnya ngak bro? lebar brp? ET brp?
    Udh gitu harus ambil semua atau dipilih 4 bisa?
    Dop lengkap?
     

  11. #10
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    pic bos......up......
     

 

 
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