外文原文-模具高速铣削加工技术.pdf

1、MoldMoldMoldMold highhighhighhigh speedspeedspeedspeed millingmillingmillingmilling processingprocessingprocessingprocessing technologytechnologytechnologytechnologyTheTheTheThe abstractabstractabstractabstractIntroduced the high speed milling in the mold processingapplication as well as the influen

2、ce,and brief introduction high speed milling enginebed structure,control system and cutting tool.Has carried on the simple analysis tothe high speed processing craft.KeyKeyKeyKey wordwordwordwords s s shigh speed milling;mold processingFirst,First,First,First,forewordforewordforewordforewordIn the m

3、odern mold production,along with to models artistic and the functionmust obtain more and more high,models the internal structure to design more andmore complex,the mold contour design day by day is also complex,the free curvedsurface accounts for the proportion to increase unceasingly,the correspond

4、ing moldstructure also designs more and more complex.These all set a higher request to themold processing technology,not only should guarantee the high manufactureprecision and the surface quality,moreover must pursue the processing surface artistic.Along with is unceasingly thorough to the high spe

5、ed processing engineering research,is processing the engine bed,the numerical control system,the cutting tool system,CAD/especially Correlation technology and so on CAM software developsunceasingly under the impetus,high speed processes the technology more and moremany to apply in the mold cavity pr

6、ocessing and the manufacture.The numerical control high-speed cutting processing took in the moldmanufacture a most important advanced manufacture technology,is the collection ishighly effective,high quality,the low consumption in a body advanced manufacturetechnology.Is opposite in the traditional

7、machining,its cutting speed,entered to thespeed had the very big enhancement,moreover cut the mechanism not to besame.The high-speed cutting caused the machining to have the leap,its specific powermetal excision rate enhanced 30%40%,the cutting force reduced 30%,the cuttingtool working durability en

8、hanced 70%,remained hotly large scale reduces in the workpiece cutting,the low step shudder vanished nearly.Along with the cutting speedenhancement,unit time semifinished materials material removing rate increased,thecutting time reduced,the processing efficiency enhanced,thus reduced the productman

9、ufacture cycle,enhanced the product market competitive power.At the same time,the high speed processing small amount entered quickly causes the cutting force toreduce,the scrap high speed discharged reduced the work piece cutting force and thethermal load distorts,enhances the rigidity to be bad and

10、 the thin wall componentsmachiningpossibility.Becausecuttingforcereducing,therotationalspeedenhancement causes the cutting system the operating frequency to be far away theengine bed the low step natural frequency,but the work piece surface roughness ismost sensitive to the low step frequency,from t

11、his reduced the surface roughness.Inmold high hard steel stock(HRC45HRC65)in the processing process,uses thehigh-speed cutting to be possible to substitute for the working procedure which theelectrical finishing and rubs truncates polishes,thus has avoided the electrodemanufacture and the time-consu

12、ming electrical finishing,large scale reduced fitterspolishing with to throw the light quantity.Thin wall mold work piece more and moreneeds which regarding some markets in,the high speed milling also may smoothlycomplete,moreover in the high speed milling CNC processing center,a mold attireclamps m

13、ay complete the multiplex step of processing.The high speed processing technology has had the huge influence to the moldprocessing craft,changed the traditional mold processing to use the annealing milling processing heat treatment to rub truncates or the electric sparkmachining manually polishes,po

14、lishes and so on the complex long technicalprocess,even might use the high-speed cutting processing substitution originalcomplete working procedure.The high speed processing technology besides mayapply in the hard mold cavity direct processing(in particular half precision work andprecision work),in

15、EDM aspect and so on electrode processing,fast type manufacturealso obtained the widespread application.The mass productions practice indicatedthat,the application high-speed cutting technology may save in the mold followingprocessing 80%handwork to grind the time approximately,saves the processing

16、costexpense nearly 30%,the mold face work precision may reach 1 m,the cutting toolcutting efficiency may enhance one time.Second,Second,Second,Second,highhighhighhigh speedspeedspeedspeed millingmillingmillingmilling processingprocessingprocessingprocessing engineengineengineengine bedbedbedbedThe high-speed cutting technology is one of machining technology maindevelopment directions,it along with foundation technology the and so on CNCtechnology,microelectronic technology,new material and new s