【摘要】：目前單層CBN砂輪成為超高速窄深槽加工的首選,針對(duì)目前電鍍法制備CBN工具存在的鍍層與基體結(jié)合強(qiáng)度差、鍍層質(zhì)量難以控制等的問(wèn)題,對(duì)45#鋼基體試件進(jìn)行了電鍍鎳實(shí)驗(yàn)。運(yùn)用脈沖電鍍方法,制備了單金屬鎳層。研究了脈沖電源占空比對(duì)鍍層孔隙率的影響及電源脈沖頻率對(duì)鍍層表層質(zhì)量的影響,獲得最優(yōu)組合條件下的電鍍鍍層結(jié)構(gòu)及形貌。實(shí)驗(yàn)結(jié)果表明:當(dāng)脈沖電源占空比為20%、脈沖頻率為0.5k Hz時(shí),獲得的鍍層具有較低的孔隙率、晶粒細(xì)致的結(jié)構(gòu)及形貌。
[Abstract]:At present, single layer CBN grinding wheel is the first choice in ultra-high speed narrow deep grooves processing. In view of the problems of poor bonding strength between coating and substrate and difficult control of coating quality, the nickel electroplating experiments were carried out on 4 steel substrate specimens. Single metal nickel layer was prepared by pulse electroplating. The effect of duty cycle ratio of pulse power on the porosity of the coating and the influence of pulse frequency on the surface quality of the coating were studied. The structure and morphology of the electroplating coating were obtained under the optimal combination condition. The experimental results show that when the duty cycle is 20 and the pulse frequency is 0.5 kHz, the coating has low porosity, fine grain structure and morphology.
【作者單位】： 太原理工大學(xué)機(jī)械工程學(xué)院精密加工山西省重點(diǎn)實(shí)驗(yàn)室;
【基金】：國(guó)家自然科學(xué)基金資助項(xiàng)目(51575375) 山西省自然科學(xué)基金資助項(xiàng)目(02050238)
【分類號(hào)】：TQ153.12

【相似文獻(xiàn)】

相關(guān)期刊論文 前3條

1 郝丹;劉智安;趙巨東;劉啟旺;陳江平;相亞軍;羅穎;;非均勻橫向脈沖磁場(chǎng)占空比對(duì)循環(huán)水中異養(yǎng)菌的影響[J];工業(yè)水處理;2014年04期

2 李行行;魏曉偉;羅松;李銅;;雙向脈沖鍍鉻占空比對(duì)鍍層微觀組織及硬度的影響[J];材料保護(hù);2012年12期

3 李立;呂國(guó)華;楊思澤;;電源占空比對(duì)鎂合金等離子體電解氧化陶瓷層腐蝕性能的影響[J];功能材料;2013年01期

，

本文編號(hào)：2135425