Probe into the cutting machining of high manganese steel accessories 高錳鋼的合理切削條件
The comparative cutting test using osg fx series end milling cutters has been done . according to the test result , the cutter life and the best cutting condition of carbide end milling cuttes were discussed 用osg的fx系列立銑刀進行切削對比試驗,根據(jù)試驗結(jié)果,討論硬質(zhì)合金立銑刀的使用壽命及最佳切削條件。
In the milling forces simulation model , the algorithm to identify the engaging cutting edges is proposed using z - map simulation model in ball - end milling process . the expression of instantaneous chip thickness is discussed by analyzing the effect of cutter eccentricity and deflection . then ball - end cutter milling forces simulation model is established on the basis of the relationship between milling forces and chip load 3 .在球頭銑刀銑削力建模和仿真方面,基于z - map模型,提出了識別球頭銑刀數(shù)控加工中參與切削的切削刃單元的peem方法,建立了球頭銑刀銑削力模型,同時根據(jù)單刃切削條件,提出了確定刀具偏心參數(shù)的方法,開發(fā)了考慮刀具偏心和刀具變形的球頭銑刀三軸加工過程的仿真系統(tǒng)。
Then the de - lay differential method of detecting the milling cutter breakage is put forward according to the above research work and the changing characteristics of power signal and vibration displacement signal when the tool breakage occurs , the monitoring stategy of sensors fusion based on the artificial neural network is put forward . the monitoring system of milling cutter breakage based on the information fusion of the power signal and vibration displace - ment signal has been developed . the diff culty in giving a dectecting threshold due to the changeable character of character of cutting condition has been solved , and a good reliability is ensured over a wide range of conditions 在上述研究工作的基礎(chǔ)上,提出了基于人工神經(jīng)網(wǎng)絡(luò)用于多傳感器信息融合的監(jiān)測策略,開發(fā)研制了以機床主電機功率信號和主軸振動位移信號特征參量融合的銑刀破損監(jiān)測實驗系統(tǒng),解決了銑削過程中切削條件多變導(dǎo)致監(jiān)測閾值難以設(shè)置的難題,保證了在較寬的工作范圍內(nèi)具有較高的識別準(zhǔn)確率。