Обший каталог Yamawa 2016 - 2017 - страница 684

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Center Drills/Centering Tools Spiral Fluted Taps (for blind hole) POINT DRILLS Product features Spiral Fluted Taps (for through hole) ●High rigidity design of the drills enables high speed cutting. ●High helix design enables high accuracy of surface finishing due to excellent cutting performance. Point angle:125°, Chamfering angle：90（°60°） Spiral Pointed Taps (for through hole) By using two types of angles, centering process and chamfering process are obtained at the same time. Hand Taps ●Different from normal center drills, because of no drill portion, there is no breakage trouble of drill portion. ●Two processes, centering and chamfering, are obtained at the same time. Point drills are also used for other processes such as fluting. ●The figures of drill end are two stepped flat type. This type enables excellent chamfering, and high precision cutting becomes possible. Cemented Carbide Taps Examples of usage Centering Chamfering Beveling Fluting Roll Taps Special Thread Taps Simple Inspection Tools Cutting processes Pipe Taps Point drills Drilling Tapping Thread Mills Centering process and chamfering process are obtained at the same time. Dies Test of continuous centering 1120 holes oint rill 1120 holes Work Cutting Dia. of Cutting c n e use 1115c oint rill hnfoulertes use Tool material speed Feed chamfer hole depth Machine Lubricant furt er er Drills 1200 1200 1115 holes SCM440 25m/min 0.15㎜ /rev (Alloy steel) 1000 SCＭ440 1000 SCＭ440 Center S50C Machining Cutting holes Water S50C PE-Q (Carbon 25m/min 0.2㎜ /rev center of Cutting holes 8.0㎜ 3.0㎜ 80s0oluble oil S50C 12×（3.5）×90° steel) vertical ×20 800 SUS304 direction SUS304 600 SUS304 (Stainless 15m/min 0.1㎜ /rev 600 Tools steel) 400 400 166 holes 166 holes Centering 200 200 0 0 SCＭ440 S50C SUS304 SCＭ440 S50C SUS304 JIS CE-41 680 For improvement, spec may change without advance notice.