Общий каталог Widia 2017 - страница 696

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Technical Information External Laydown Threading Required Information Chuck Jaws CCW rotation From Part Drawing: 25mm 8UN Class 2A material: 316SS, 200 HB thread form: 8UN tolerance: class 2A operation: external threadingpitch diameter:50mm x 25mm deep 50mm feed From Machine Setup Data: tooling: 20mm x 20mm spindle rotation: anti-clockwise feed: toward chuck 70mm Steps for a Successful Threading Operation Step 1 • Step 2 • Determine Threading Method Select Insert Need to Know: Need to Know: • Operation (external). • Thread form (ISO R262 1mm pitch). • Spindle rotation (CCW). • Hand of insert (right hand — ER). Anti-clockwise rotation. • Feed direction (toward chuck). • Right-hand toolholder. • Right-hand insert (ER). Choose the High-Performance Solution • Standard helix method. catalogue number insert size TN6025 3ER10ISO 3 • High-Performance Selection NOTE: Use insert with largest insert size available. insert: 3ER10ISO grade: TN6025 speed: 150 m/min Step 3 • Step 4 • Step 5 • Select the Grade and Speed Select Toolholder Select Shim Need to Know: Need to Know: Need to Know: • Workpiece material (316SS-200HB). • External or internal operation • Thread form — TPI or pitch (8 TPI). • Operation (external). (external). • Pitch diameter (50mm). • Pitch diameter to determine minimum • Helix method (standard). bore diameter (N/A). See Laydown Threading (LT) shim Options: Grade and Speed • Type of tooling — toolholder, boring selection chart. Selection Guidelines bar (toolholder). • Hand of tool (right hand). • Insert size (16). Select SM-YE3 shim threading stainless operation steel NOTE: For this application, the standard general purpose shim supplied should be replaced and high performance with the recommended shim, external TN6025 Options: SM-YE3. 50–360 m/min catalogue number insert size shim AL203R 3 SM-YE3 F98 widia.com