Общий каталог Widia 2017 - страница 1021

• Table of Contents
• Turning
• Turning • ISO Inserts
• Turning • Tools for External Turning and Internal Boring
• Turning • Tools for External Turning and Internal Boring
• Turning • Tools for Small Hole Boring
• com E1Turning • Grooving and Cut-Off
• Turning • Threading
• Indexable Milling
• Indexable Milling • Face Mills
• Indexable Milling • Chamfer Mills
• Indexable Milling • 90° Shoulder Mills
• Indexable Milling • Helical Mills
• Indexable Milling • Slotting Mills
• Indexable Milling • Copy Mills
• Solid End Milling
• Solid End Milling • High-Performance Solid Carbide End Mills
• Solid End Milling • General Purpose Solid Carbide End Mills
• Solid End Milling • High-Performance High-Speed Steel (HSS-E/PM)
• Solid End Milling • Burs
• Holemaking
• Holemaking • High-Performance Solid Carbide Drills
• Holemaking • Modular Drills
• Holemaking • Indexable Drills
• Holemaking • Modular Drills
• Holemaking • Indexable Drills
• Holemaking • Hole Finishing
• Tapping
• Tapping Portfolio
• Index by Order Number
• Index by Catalogue Number
• Global Contacts
• Informational Icons Guide
• Material Overview • DIN

Copy Mills • M270™ Series Additional Application Advice • M270 Ball Nose Selecting the Correct Insert and Cutting Conditions for Your Application 1. Insert Style: Considerations for Selecting the Correct Insert BR Geometry BF Geometry Best Choices for Insert and Grade Selection ⅷ First choice ࠗ Alternate choice Grade TN7535 TN2510 TN2505 Roughing Operation ⅷ ࠗ Finishing Operation ࠗ ⅷ Low RPM Machine ⅷ ࠗ Flat Areas or Face Milling (≤10° inclination) ⅷ ࠗ Hard Machining ࠗ ⅷ Unstable and/or Long Overhangs ⅷ ࠗ HSM or 5-Axis Machining (smaller ap/ae values) ⅷ ࠗ 2. Calculating effective diameter and resulting surface speed It is important to consider the effective When machining inclinations between diameter (Deff) when using light depths 11° and 55°, further modification of vc of cut in order to properly calculate RPM is required. Apply factor “k” from the values. Use the following formula when given formula to calculate the correct machining flat surfaces or inclinations vc (vceff). This corrected value is then α of 10° or less to find the Deff value, Ap1 used to calculate the proper RPM for and then use this for RPM calculations the tool. as opposed to using the overall insert diameter (D1). Deff Deff D1 D1 Deff 2-(D1-2Ap1)2 k= 1sin [α + arcCos (1-(2 (Ap1/D1)))] v eff = v Xk c c Starting Values for Semi-Finishing in Common Material Types (L/D ratio <3 x D1) M270 is usually applied for semi-finishing and finishing operations; Ap1/ae conditions depend on the operation. As a general rule: Ap1/ae )0,05D. Tool Diameter Ø10 Ø12 Ø16 Ø20 Ø25 Ø32 max rec. max rec. max rec. max rec. max rec. max rec. (mm) fz (mm) fz (mm) fz (mm) fz (mm) fz (mm) fz (mm/ (mm/ (mm/ (mm/ (mm/ (mm/ Material Ap1 ae tooth) Ap1 ae tooth) Ap1 ae tooth) Ap1 ae tooth) Ap1 ae tooth) Ap1 ae tooth) Soft Steel <250 HB 0,7 0,7 0,2 0,8 0,8 0,2 1,1 1,1 0,27 1,3 1,3 0,27 1,7 1,7 0,3 2,1 2,1 0,3 High-Strength Steel33–44 HRC0,5 0,5 0,15 0,6 0,6 0,2 0,8 0,8 0,25 1 1 0,25 1,3 1,3 0,25 1,6 1,6 0,25 Hardened Steel44–55 HRC 0,3 0,3 0,15 0,4 0,4 0,2 0,5 0,5 0,22 0,7 0,7 0,22 0,8 0,8 0,25 1,1 1,1 0,25 Grey Cast Iron GG25… 1 1 0,2 1,2 1,2 0,25 1,6 1,6 0,25 2 2 0,25 2,5 2,5 0,3 3,2 3,2 0,3 Nodular Cast IronGGG60… 0,7 0,7 0,2 0,8 0,8 0,25 1,1 1,1 0,25 1,3 1,3 0,25 1,7 1,7 0,3 2,1 2,1 0,3 widia.com M117