
6-2017.ppt
- Количество слайдов: 36
Электро-эрозионный станки Программирование
Электро-эрозионный станки Прошивные Проволочно-вырезные
Прошивные электро-эрозионные станки
Элементы станка
Технологии The machining current is optimally controlled according to the change in the electrical discharge area as machining proceeds. ・Rough machining time is reduced. ・Eliminate abnormal electrode wear and arcing.
Технологии ・Eliminate gas and chips that collect alongside the electrode. ・Stabilize machining and reduce rough machining time. ・Effective for deep machining.
Технологии Rough machining time depends on jump Speed 40 m /min Rib head 10 m /min M/C depth (mm) 1 mm 5 m/min 30 mm
Технологии Machining condition and jump motion are optimally controlled at chamfer ( lead in ), thereby she reaches a stable machining state quickly.
Примеры деталей Work-piece material: Machining depth: Rate of high speed jump: Surface finish: NAK 80 20 mm 5 m/min 5μm. Ry conventional Electrode: Width of Rib: Number of electrode: Electrode reduction: Gr(EX 70) 200× 50 mm 1 mm 2 0. 15 mm Super Spark II Overall 44 H 52 min 32 H 22 min (-28%) 27 H 52 min (-38%) Roughing 26 H 32 min 14 H 02 min (-47%) Finishing 18 H 20 min (-0%) 13 H 50 min (-25%)
Примеры деталей Work-piece material: Machining depth: Rate of high speed jump: Surface finish: conventional NAK 80 20 mm 5 m/min 5μm. Ry Electrode: Width of Rib: Number of electrode: Electrode reduction: Super Spark Gr(EX 70) 90× 30 mm 1 mm 2 0. 15 mm Super Spark II Overall 17 H 20 min 11 H 22 min (-34%) 9 H 12 min (-47%) Roughing 11 H 5 H 22 min (-51%) Finishing 6 H 20 min 6 H (-5%) 3 H 50 min (-39%)
Примеры деталей
Примеры деталей No pin holes on the surface. Magnification rate : 50 Pin-holes Conventional machining ( 0. 21μm Ra, 1. 70μm. Ry ) Super Surface ( 0. 18μm. Ra, 1. 34μm. Ry )
Примеры деталей Different of grain diameter. Magnification rate : 400 Conventional machining Super Surface ( 0. 21μm Ra, 1. 70μm. Ry ) ( 0. 18μm. Ra, 1. 34μm. Ry )
Reducing polishing time … Superior surface finishes can be achieved with a graphite electrode. 70 mm 50 mm Tip width : 0. 5 mm Electrode : Poco EDM 3 Electrode reduction : 0. 1 mm Number of electrodes : 2 Machining depth : 4. 0 mm Workpiece : HPM 50 Machining time : 4 hr 30 min. A multi-rib for mobile phone machined by V 56 Surface finish : Ra 0. 16 um
Проволочно-вырезные электро-эрозионные станки
Элементы станка SP 43/SP 64 Round Guide V-Flat Guide W 32 FB/W 53 FB UPH-2/UPJ-2 U 32 j/U 53 Tj U 86
Элементы станка V-guide (Wire guide) Flat-guide (Clamp guide) Energizing plate Close/Unclose
Элементы станка V guide Energizing plate Round guide (For φ0. 07, 0. 15, 0. 25 mm) Jet nozzle (φ0. 5, 0. 7, 1. 0, 1. 5 mm)
Технологии Unstable burning condition Stable burning condition
Технологии V-corner / OFF V-corner / ON In the 1 st pass, wire feed delay ( corner washout ) is compensated for in real time so that the same amount of material can be removed consistently in the 2 nd pass.
Технологии SKD 11 / 40 mm 1 mm V-corner OFF V-corner ON
Технологии Total machining time : 14 hrs / 9 pieces Material : SKD 11(JIS) / Similar to 1. 2379 (DIN) Used wire : φ0. 2 Bs / U 32 j Surface roughness : 1. 0μm. Ry / 0. 09μm. Ra Clearance : 2. 5μm
Технологии A key technology to achieve superior straightness when cutting a thick work-piece is to minimize the error as much as possible in the 1 st pass. GS cut / ON
Stable machining Технологии Faster machining speed Better machining performance Slow Speed Medium Speed Fast Speed
Технологии
Технологии Two sensors installed separately for upper and lower head monitor the flushing condition so that this can provide optimal cutting speed and prevent wire breaks.
Программирование Управляемые оси