Superalloy Deep Hole Honing Technology Research

Due to superalloy with excellent mechanical properties, thermal strength and goodthermal stability, etc. which widely applied in aerospace, shipbuilding, petrochemical industryand other fields. However, at the same time, superalloy mechanical properties are worse,which leads to sharpening oilstones adhesive blockage, high grinding temperature, Lowprocessing efficiency and other phenomenon in the honing process. It’s a sort of typicaldifficult to machine materials. The application of deep hole parts is more and more widely inrecent years, especially for difficult to machine materials deep hole parts. Deep holeprocessing technology which with high processing difficulty and high specialization. Certainly,there is more difficult in the superalloy deep hole honing, in addition, there is no superalloydeep hole honing process parameters (compatible honing stone, honing pressure and honingfluid). Accordingly, it is necessary to in-depth study of superalloy deep hole honingmechanism. This paper studied from the processing of single grits removal of material andcombined with the superalloy deep hole honing test to measured and established mathematicalmodel of oilstones work-surface adhesion rate. The work provides theoretical evidence forsuperalloy deep hole honing. The work carried out mainly includes：(1)On the basis of the theoretical analysis of deep hole honing technology, I designedand developed conform with actual operation device of superalloy deep hole honing.(2)A detailed analysis and study on the deep hole honing nickel-base superalloyInconel718material removal mechanism, established the single grits material removalphysical model by analyzed, combined with the single factor experiment, established theoilstone surface adhesion rate mathematical model.(3)Carried out for nickel-base superalloy Inconel718deep hole honing test under theconstant pressure condition; Analyzed the oilstone surface adhesion conditions and oilstoneself-dressing property, and compared with different oilstones and honing liquid; tested factorsthat affecting the honing efficiency with different honing parameters, and discussed theinfluence law of various factors on the superalloy honing processing, and studied the influenceof honing pressure, workpiece speed, honing distance to the oilstone adhesion. Eventually, Istudied the oilstone adhesion mechanism when honing superalloy. On this basis, the superalloy deep hole honing process parameters were optimized.