Обший каталог Yamawa 2016 - 2017 - страница 761

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Product PRAD system Solution tool

Reborn Demand

? What is PRAD system ? Efficient use of limited resources.

PRAD system is the new system which has P Product never been seen before. R PRAD enables us to make the tap most suita- Reborn ble for specified applications by using taps in A According

Yamawa or those stocked at customers' hands. It also enables us to manufacture special taps D Demand by using Yamawa standard tap blanks.

? What is standard blank ? … Standard blank system

  • Blank is generic designation of semi-finished product before forming a tap.

●Standard blank is the blank for manufacturing standard tap.

  • Special taps will be completed only after the process of edging (on flute,thread and chamfer), by using the blanks which are already heat treated and shank ground.
  • 5 kinds of thread standard(unified, whitworth, SM-sewing machine screw, STI metric, STI unified) For 5 kinds of thread standard, let's use Metric thread blanks. Standardization can

Metric

Unified（U） Whitworth（W） Sewing machine screw（SM） thread realize commoniza-

blanks tion of tap collets. STI metric STI unified Commonization of tap collets. (Example) In the case of M20 x2.5 and 3/4-10 UNC

Before After

Dimension of old blanks Dimension of new blanks Ds Stand- M20X2.5

Ds : φ15M20X2.5Dsardiza-
3/4-10UNCtion of
DsDs : φ15shank

3/4-10UNC diameter Ds : φ14 ! Circumstances surrounding tool materials C

C C Depletion of resources C C C C

Main tool materials for Yamawa taps useIn the world, rare metals omnipresent.
a lot of rare metals as the substrate.Political situation can make it more diffi-
Today market price of rare metals hascult for us to obtain these rare metals.
risen due to collapse of the balanceSo, it is quite important to assure stable
between supply and demand.supply and recycling technique.

PRAD system is globally- friendly and stands on customer's eye.