摘要
本文提出采用超声波振动车削新工艺来消减铸造铝硅合金加工中的积屑瘤。大量试验表明这种新工艺在中、低速切削时效果显著,尤其在加切削油的条件下可明显拓宽无瘤切削区。本文用SEM分析研究了积屑瘤的形貌和大小,清晰地揭示出铝硅合金积屑瘤的各种形态。本文还发现速度系数K_v是影响积屑瘤高度H内在规律性的重要参数,并且建立了相应的数学模型。
In this paper, it is proposed that formation of the builtup-edge during the machining of cast Al-Si alloys can be suppressed by ultrasonic vibration cutting. Its effectiveness has been shown experimentally when in turning at middle or low speeds. On cutting with a lubricant the area without built-up-edge formation can be widened. Shape and size of the built-up-edge is studied through SEM analysis and various types of the built-up-edge are brought to light clearly. It is also found that the cutting speed coefficient Kv is an important parameter in effecting the height of built-up-edge. Relevant mathematical model is established.
出处
《兵工学报》
EI
CAS
CSCD
北大核心
1990年第4期60-67,共8页
Acta Armamentarii
基金
国家自然科学基金(编号5860132)研究内容之一。
关键词
铝硅合金
积屑瘤
超声波
振动切削
vibration cutting, Al-Si alloy, ultrasonic machining, built-upedge
