184 Каталог HOFFMANN GROUP 2016 Станочный режущий и вспомогательный инструмент Вер. 47 Стр.184

Каталог HOFFMANN GROUP 2016 Режущий инструмент и оснастка Стр. 184 0184 ENG Lab2u

Hoffmann Group 47 HSS E-PM M Standard 1 a r h6 DIN 40" 1835 B £3xD 4tfiannt' Synchronised blind hole machine tap with internal coolant supply Sturdy version with right-hand helix and shank to DIN 1835-B. Special geometry for general-purpose use on machines with synchronised spindle drive. The tap is controlled by the synchronising spindle of the machine. Special TiAIN-S coating for optimum tool life. For use with emulsion (fat content minimum 8%). 13 7813 - Form E (lead chamfer: 1.5 - 2 turns) for the deepest possible thread depths. 13 7816 - With internal coolant supply for maximum tool life. Application: For Whitworth parallel pipe threads DIN-ISO 228/1 (threads that do not form a seal within the connection). Note: For use on synchronised spindles, the GARANT quick-change tapping chuck No. 338100 - 8118 with minimum length adjustment (MLA) ensures highest process reliability. IS 137810 1-3 1 8BKSS3 137813 >-rr 1 114 - i-3-i 137816 Suitable for/ v( m/min Alu plastics Alu cast >10%Si X <500N X <750N X < SOON X < 1100 N X <1400 N X <55 HRC X < 60 HRC X <65 HRC X <67 HRC X <70 HRC IN0X <900 N INOX >900 N Ti >850N CuZn Uni 6 i ISO code N P H M s N 137810-137816 32 32 33 32 20 12 7 11 9 30 inch i 137810 b 13 7813 b 13 7816 Threads per inch Thread 0 Pi X HSS-E-PM FormC Machine tap or synchronised spindle HSS-E-PM FormE HSS-E-PM IC/FormC fjj Lt i 1 TiAIN mm G1/8 87.12 87.12 118.31 28 9.73 90 8 6.2 8.8 G1/4 124.25 124.25 160.88 19 13.16 100 12 9 11.8 G3/8 154.44 154.44 195.53 19 16.66 100 12 9 15.25 G1/2 219.78 219.78 277.20 14 20.96 125 16 12 19 Synchronous machine taps Process reliability when cutting threads Thread tapping is generally the final manufacturing process. This operation is thus critical for the quality of the workpiece. Defective threads generally give rise to significant additional costs. Process reliability thus takes absolute priority. However short cycle times and economic production processes must also be considered. Special considerations when tapping threads. When tapping threads the tool is interlocked with the workpiece. This gives rise to special and complex problems (compared to turning and milling). Axial and radial movements in combination. To avoid pitch errors, it is necessary to exert control over the spindle play. Feed rate and cutting speed are directly dependent on each other On CNC machines therefore the rotational speed of the machine spindle must be synchronised with the speed of the feed axis. This gives rise also to the important difference from drilling and milling, which a linear movement is required for positioning. Lead-in Machining (or deformation using a thread forming tool) of the workpiece is performed within this range. Short threaded part = guidance range of the tool The tap must be rigidly damped in a synchronised machine. The axial feed is performed via the spindle. This means that the guidance range has lost its function, and its length can be reduced. In turn the reduced guidance range permits optimised tool geometry which is particularly free-cutting at the material. 184