Каталог Stellram токарный инструмент - страница 263

Заказ инструмента: http://steelcam.org Threading Technical 8 (343) 382-52-03 | sales@sverla-ekb.ru Threading Checklist 1 What’s the Application 3 Select Tooling F) External Threading A) Internal or External B) Type of thread form G) Internal C) Material being machined b f Thread Angle Angle Helix I2 I1 Major Ø Minor Ø Pitch Ø External Internal d1 Thread Thread f h1 z h d I2 I1 Root Pitch Crest Depth of Thread See pages C238 – C242 2 Machine Set-Up 4 Check Helix Angle D) LH or RH thread form Note: The 1.5° E) Machine Set-Up Calculation of thread helix angle for a given thread Helix angle - Tan-1 u = Lead of the Thread Right Hand Thread / Right Hand Tooling Pitch/Effective Diameter x π Helix Angle Calculation (mm) Outside Pitch Diameter 1 1,25 1,5 1,75 2 mm Helix Angles es (Degrees and M and Minutes) 5 3° - 38' 4° - 33' 5° - 27' - - 6 3° - 2' 3° - 48' 4° - 33' 5° - 18' 6° - 33' 8 2° - 17' 2° - 51' 3° - 25' 3° - 59' 4° - 33' 10 1° - 49' 2° - 16' 2° - 44' 3° - 11' 3° - 39' 12 1° - 31' 1° - 54' 2° - 17' 2° - 39' 3° - 2' 14 1° - 18' 1° - 38' 1° - 57' 2° - 17' 2° - 36' See page C248 16 1° - 8' 1° - 42' 1° - 42' 2° - 0' 2° - 17' 18 1° - 1' 1° - 16' 1° - 31' 1° - 46' 2° - 2' 20 55´ See page 1° - 8'C250 1° - 22' 1° - 36' 1° - 49' 25 44´ 55´ 1° - 6' 1° - 16' 1° - 28' 30 36´ 46´ 55´ 1° - 4' 1° - 13' 35 31´ 39´ 47´ 55´ 1° - 3' 40 27´ 34´ 41´ 48´ 55´ 45 24´ 30´ 36´ 43´ 48´ 50 - - - 38´ 44´ 60 - - - - 36´ 70 - - 23´ - 31´ 80 - - - - - 90 - - - 21´ 24´ 100 - - 17´ 19´ - C262 www.kennametal.com