Na-achịkwa arụmọrụ egweri nke wiil egweri site na granularity agwakọta nke abrasives

Egweri bụ usoro ịhịa aka n'ahụ nke a na-eji wheel abrasive egweri (GS, dị ka e nyere na Fig.1) wepụ ihe n'otu oge na-agbagharị ọsọ [1]. Igwe ihe na-egweri bụ nke abrasives, onye na-ejikọta ya, ndị na-ejuputa na pores, wdg. N'ime nke a, abrasive na-arụ ọrụ nke ịkpụcha ihe n'oge usoro nsị. The ike, ike, fractural omume, geometry nke abrasive nwere mmetụta dị ukwuu na-egweri arụmọrụ (ike egweri, elu iguzosi ike n'ezi ihe nke machined workpiece, wdg) nke egweri wheel [2, 3].

Ihe osise 1.The ahụkarị egweri wiil na mbuaha granularity nke abrasives.

A nwalere ike nke zirconia alumina (ZA) na granularity nke F14 ~ F30. E kewara ọdịnaya abrasive nke F16 ma ọ bụ F30 na GS a kwadebere n'ime akara ule ise site na elu ruo ala: ultrahigh (UH), elu (H), etiti (M), obere (L), na oke ala (EL). Achọpụtara na ike ịkụpịa Weibull nke F14, F16 na F30 nke ZA bụ 198.5 MPa, 308.0 MPa na 410.6 MPa, n'otu n'otu, na-egosi na ike nke ZA toro na mbelata nke abrasive grit size. Modul Weibull buru ibumgosiri obere ihe dị iche iche n'etiti ụmụ irighiri ihe a nwalere [4-6]. Nkemuru belatara na mbelata nke abrasives grit size, na-ekpughe na ọdịiche dị n'etiti abrasives nwalere bịara buru ibu site na mbelata nke abrasive grit [7, 8]. Ebe ọ bụ na njupụta njupụta nke abrasive na-adịgide adịgide, obere abrasives nwere obere ntụpọ na ike dị elu, si otú a na-eme ka abrasives ndị dị mma na-esi ike imebi.

Fig.2. Nchegbu njirimara Weibulls₀na modul Weibullmmaka ụdị dị iche iche nke ZA.

Emepụtara ụdị ejiji zuru oke nke usoro ọrụ kacha mma [9], dị ka e gosiri na Fig. 3. N'okpuru ọnọdụ dị mma, abrasive nwere ọnụ ọgụgụ ojiji dị elu na GS na-egosipụtakwa arụmọrụ dị mma [3]. N'okpuru ibu egweri na ike ihe na-ekekọta, a gbanwere usoro isi eji eme ya site na mgbakasị ahụ na micro-facture maka F16 ka ọ bụrụ ihe na-adịghị mma ma dọpụta ya maka inwe F30 na ọdịiche dị na ike ịkụpịa ike [10,11]. Mwepu ahụ kpatara mmebi GS na nkọcha onwe ya nke abrasive wepụrụ nwere ike nweta ọnọdụ nha anya, si otú a na-akwalite ikike egweri nke ọma [9]. Maka mmepe nke GS n'ihu, abrasive ike na-etipịa ike, ike na-ekekọta ike na-egweri ibu, yana usoro ejiji evolushọn nke abrasives, kwesịrị ịgbanwe ma chịkwaa iji kwalite ọnụego ojiji abrasives.

Fig.3.Usoro ọrụ kacha mma nke abrasive

Ọ bụ ezie na arụ ọrụ GS na-egweri ọtụtụ ihe na-emetụta ya, dị ka ike na-etipịa ike, ike na-ekekọta ike, ibu na-egweri, àgwà ịcha abrasive, ọnọdụ egweri, wdg, nyocha nke usoro nhazi nke ngwakọta granularities nke abrasives nwere ike inye nkọwa dị ukwuu na nhazi na mmepụta nke GS.

Ntụaka 

• I.Marinescu, M. Hitchiner, E. Uhlmanner, Rowe, I. Inasaki, Handbook of machining with egweri wheel, Boca Raton: Taylor & Francis Group Crc Press (2007) 6-193.
• F. Yao, T. Wang, JX Ren, W. Xiao, A comparative study of residual stress and emetụtara oyi akwa na Aermet100 ígwè egweri na alumina na cBN wiil, Int J Adv Manuf Tech 74 (2014) 125-37.
• Li,T. Jin, H. Xiao, ZQ Chen, MN Qu, HF Dai, SY Chen, Topographical njirimara na iyi omume nke diamond wheel na dị iche iche nhazi nkebi na-egweri nke N-BK7 anya iko, Tribol Int 151 (2020) 106453.
• Zhao, GD Xiao, WF Ding, XY Li, HX Huan, Y. Wang, Mmetụta nke ọka ọdịnaya nke otu-gbakọtara cubic boron nitride ọka na ihe onwunwe mwepụ usoro n'oge Ti-6Al-4V alloy egweri, Ceram Int 46 (11) (2020) 17666-74.
• F. Ding, JH Xu, ZZ Chen, Q. Miao, CY Yang, Interface e ji mara na fracture omume nke brazed polycrystalline CBN grains iji Cu-Sn-Ti alloy,Mat Sci Eng A-Struct 559 (2013) 629-34.
• Shi, LY Chen, HS Xin, TB Yu, ZL Sun, Nnyocha na akụrụngwa egweri nke elu thermal conductivity vitrified bond CBN egweri wheel maka titanium alloy, Mat Sci Eng A-Struct 107 (2020) 1-12.
• Nakata, AFL Hyde, M. Hyodo, H. Murata, A puru omume obibia aja urughuru etipịa ke triaxial ule, Geotechnique49 (5) (1999) 567-83.
• Nakata, Y. Kato, M. Hyodo, AFL Hyde, H. Murata, Otu akụkụ mkpakọ omume nke uniformlygrade ájá metụtara otu urughuru etipịa ike, Ala hụrụ 41 (2) (2001) 39-51.
• L. Zhang, CB Liu, JF Peng, etc.Mmelite egweri arụmọrụ nke elu-ọsọ ụgbọ okporo ígwè egweri nkume site agwakọta granularity nke zirconia corundum. Tribol Int, 2022, 175: 107873.
• L. Zhang, PF Zhang, J. Zhang, XQ Fan, MH Zhu, Na-enyocha mmetụta nke abrasive grit size na omume egweri ụgbọ okporo ígwè, J Manuf Process53 (2020) 388-95.
• L. Zhang, CB Liu, YJ Yuan, PF Zhang, XQ Fan, Nyochaa mmetụta nke abrasive yi na-egweri arụmọrụ nke okporo ígwè egweri nkume, J Manuf Usoro 64 (2021) 493-507.