Calculated Industries Machinist Calc Pro Podręcznik Użytkownika Pobierz pdf (Strona 47)

46 — Ma c h i n i s t ca l c ™ Pr o

Fractional Thread Size

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KEYSTROKE DISPLAY

ALL CLEAREd

1. Verify Thread Class is set to 2B:

(Thread Class) INT 2B

2. Enter the Thread Size:

1/4t

SIZE

1/4 –

INCH

3. Enter the TPI and store the nal Thread Size:

28t

THRED SIZE

1/4 –

INCH

4. Find the available Internal Thread characteristics:

(Cut Tap Drill Size) TAP DRILL SIZE 3

(Roll Tap Drill Size)

R-TAP DRILL SIZE 5.9 MM

(Close Fit Drill Size)

CLOSE DRILL SIZE F

(Free Fit Drill Size)

FREE DRILL SIZE H

(Min. Internal Pitch Diameter)

PTCH- SIZE 0.2268 INCH

(Max. Internal Pitch Diameter)

PTCH+ SIZE 0.2311 INCH

(Min. Internal Minor Diameter)

MINR- SIZE 0.2110 INCH

(Max. Internal Minor Diameter)

MINR+ SIZE 0.2200 INCH

(Min. Internal Major Diameter)

MAJR- SIZE 0.2500 INCH

5. Switch to Thread Class 2A and nd the available External

Thread characteristics:

gbb

(Thread Class) EXT 2A

THRED SIZE $ 1/4 –

INCH

(Rod Size for Thread Cutting) ROD SIZE 0.2500 INCH

(Rod Size for Cold Forming) CFORM SIZE 0.2239 INCH

(Max. External Pitch Diameter)

PTCH+ SIZE 0.2258 INCH

1 2 ... 42 43 44 45 46 47 48 49 50 51 52 ... 69 70

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