【摘要】：攪拌摩擦焊技術(shù)作為一項(xiàng)新型的綠色焊接技術(shù),自發(fā)明以來,歷經(jīng)近20年的研發(fā)和工業(yè)應(yīng)用,已獲得國際學(xué)術(shù)界和工業(yè)界的廣泛關(guān)注,并在航空、航天、船舶、列車、汽車、電力、電子等工業(yè)制造領(lǐng)域發(fā)揮了巨大作用,創(chuàng)造了可觀的社會經(jīng)濟(jì)效益。攪拌摩擦焊工藝特點(diǎn)要求攪拌摩擦焊攪拌頭與焊縫始終保持一定的工藝傾角,以達(dá)到鍛造的作用,使焊接組織致密,消除了疏松,氣孔等熔化焊常見的缺陷,獲得優(yōu)異的焊接接頭。隨著攪拌摩擦焊技術(shù)在業(yè)界的不斷推廣和應(yīng)用,對于平面二維曲線焊接的要求越來越強(qiáng)烈,因此,開發(fā)出一種能焊接平面二維曲線的攪拌摩擦焊設(shè)備,實(shí)屬必要。論文主要研究工作如下：1.從攪拌摩擦焊工藝傾角出發(fā),研究其在平面二維曲線焊縫焊接中的變化規(guī)律。2.在工藝傾角的變化的前提下對焊接平面曲線焊縫和攪拌摩擦焊接設(shè)備進(jìn)行了研究,表明在需求上共需要四個軸的控制：X軸、Y軸、Z軸和C軸。3.研究平面二維曲線焊縫攪拌摩擦焊設(shè)備的運(yùn)動形式,在此基礎(chǔ)上設(shè)計平面二維曲線焊縫靜龍門攪拌摩擦焊設(shè)備總體布局方案,設(shè)計機(jī)械傳動系統(tǒng)圖。4.引入數(shù)控技術(shù),構(gòu)建用于控制平面二維曲線焊縫靜龍門攪拌摩擦焊設(shè)備的基于發(fā)格8055數(shù)控系統(tǒng)總體方案,并對主要硬件進(jìn)行選型,設(shè)計系統(tǒng)控制電路。5.對數(shù)控系統(tǒng)的軟件結(jié)構(gòu)體系做了分析,利用發(fā)格8055數(shù)控系統(tǒng)專用編程語言,開發(fā)了適用于攪拌摩擦焊的切線跟蹤及長度補(bǔ)償功能。并通過試驗(yàn)驗(yàn)證了上述工作的正確性。本課題的研究成果對平面二維曲線焊縫攪拌摩擦焊設(shè)備開發(fā)具有重要的實(shí)際意義。
[Abstract]:As a new green welding technology, friction stir welding (FSW) technology has been widely concerned by the international academia and industry since it was invented, and has been widely concerned by the international academia and industry since its invention, and has been widely used in aviation, aerospace, ships, trains, automobiles, etc. Electric power, electronics and other industrial manufacturing fields have played a great role in creating considerable social and economic benefits. The characteristics of friction stir welding (FSW) process require that the FSW stir head should always maintain a certain inclination angle with the weld seam, so as to achieve the effect of forging, to make the welding structure dense, and to eliminate the common defects in melting welding, such as porosity and porosity, etc. Excellent welded joints are obtained. With the development and application of friction stir welding (FSW) technology in the industry, the requirement of planar 2D curve welding is becoming more and more intense. Therefore, it is necessary to develop a friction stir welding equipment which can weld planar 2D curves. The main research work of this paper is as follows: 1: 1. Based on the obliquity of friction stir welding process, the variation rule of friction stir welding in plane two dimensional curve welding is studied. The welding plane curve weld and friction stir welding equipment are studied on the premise of the change of process inclination angle. The results show that the control of four axes is needed, namely, Z axis and C axis. 3. This paper studies the movement form of plane two-dimensional curve weld friction stir welding equipment, designs the general layout scheme of plane two-dimensional curve weld static gantry friction stir welding equipment, and designs the mechanical transmission system diagram .4. With the introduction of numerical control technology, the overall scheme of Fagger 8055 numerical control system based on Fagger 8055 is constructed to control the plane two-dimensional curve weld static gantry friction stir welding equipment. The main hardware is selected and the control circuit of the system is designed. The software structure of NC system is analyzed and the tangent tracking and length compensation function for friction stir welding is developed by using the special programming language of Fagger 8055 NC system. The correctness of the above work is verified by experiments. The research results of this paper have important practical significance for the development of friction stir welding equipment for planar two-dimensional curve welding seam.
【學(xué)位授予單位】：中國科學(xué)院大學(xué)(工程管理與信息技術(shù)學(xué)院)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TG409

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本文編號：2193516