Обший каталог Yamawa 2016 - 2017 - страница 541

Предыдущая страница Следующая страница

Навигация

CHECK PINS (for blind hole) Spiral Fluted Taps Obtainable from Please check the hole size before tapping! Video site shown in right Let's check the hole size before tapping 6H class internal threads of M6×1 by using Check-pin for cutting taps. (for through hole) Spiral Fluted Taps ■ How to use CPC-S (Straight type) STEP (for through hole) Spiral Pointed Taps 1 Check the minor dia. for M6×1 6H internal thread STEP Hand Taps 2 Size of the Check-pin for M6×1 Select the nearest sizes of the Check-pins to the max and min size of minor dia of 6H ｄ1 ｄ2 internal thread by checking the table listed Size L ℓ DS （Percentage of thread （Percentage of thread on the left side. Carbide Taps Cemented engagement） engagement） 4.917 （100％） 5.026（90％） ⇒ ①4.917（100％）and ②5.134（80％） 4.972 （95％） 5.080（85％） M6 ×1 73 16.5 6 5.026 （90％） 5.134（80％） Depending on the feature of work-piece 5.080 （85％） 5.188（75％） materials, it is beneficial to tapping to make 5.134 （80％） 5.242（70％） the hole size before tapping as large as possible and within the tolerance. Roll Taps STEP 3 Insert the Check-pins ① and ②, selected in step 2. Simple Inspection Tools Special Thread Taps ① 4.917 ② 5.134 GOOD The hole is finished within minor dia of 　（100％） 　（80％） 6H class internal threads. 1.5 Pipe Taps 2 You can easily check hole Check-pin smoothly goes Check-pin doesn't go 2.5 depth by the three lines on its into the bottom of the hole. into the hole. pin as well. ■ How to use CPC-T (Taper type) Thread Mills ｄ1 ｄ2 Product Dies Size L ℓ DS （Percentage of thread （Percentage of thread code （ℓ1） （ℓ2） engagement） engagement） M6 ×1 61.5 17 6 4.917 （100％） 5.153（78％） CPCT6.0M 3.8 12.8 ×BAD ×BAD GOOD Center Drills Acceptable range Minimum Ma imum Centering Tools Bad hole : Check-pin Bad hole : Check-pin goes line line doesn't go into the hole into the hole over the 4.917 5.153 100 78 over the minimum line. maximum line. JIS ST-14 For improvement, spec may change without advance notice. 537