کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
793048 1466751 2015 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Fiber laser carving under ice layer without laser energy attenuation
ترجمه فارسی عنوان
برش لیزری فیبر تحت لایه ی یخ و بدون آسیب لیزر انرژی
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی صنعتی و تولید
چکیده انگلیسی


• A novel method of laser carving under ice layer without laser energy attenuation is proposed.
• The accuracy of machined channel width would not be affected at the condition of laser carving under ice.
• A thermal effect model of laser beam on ice layer and workpiece is developed.
• The recast layer and dross is well removed.
• High temperature influence area, heat effect zone and surface oxidation are decreased.

A novel method of fiber laser carving machining under ice layer without laser energy attenuation was proposed to reduce workpiece defects such as recast layer, dross, high temperature influence area, surface oxidation and heat effect zone that were typically found in machining in air. The mechanism of laser carving process under ice was analyzed to understand the thermal effect of laser pulse on the ice layer and workpiece. A cooling module based on Peltier cooler was designed to form an ice layer on the surface of workpiece. To investigate the effect of ice layer, the laser carving under ice and in air on titanium, red copper and aluminum workpiece were conducted. The results showed that the ice layer attenuated the laser energy barely resulting that the accuracy of machined channel width would not be affected at the condition of laser carving under ice. The recast layer and dross along the machined channel could be well removed. The high temperature influence area, heat effect and surface oxidation could also be decreased. It is due to that the ice isolated the ejective molten material and oxygen from the surface of workpiece and provided a rapid cooling rate.

Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Materials Processing Technology - Volume 216, February 2015, Pages 278–286
نویسندگان
, , , , , , ,