廣東工業(yè)大學 材料成型及控制工程專業(yè)英語

1、parting(lineplane分模面;draft拔模斜度;corner(filletradius外(內圓角半徑;web筋;rib肋;punchout連皮;roller impression滾擠模膛;bar stock棒坯,棒料;gutter溝槽,倉部;gate鉗口;flash飛邊;knock-out pins 頂桿;thermal fatigue熱疲勞;die wear模具磨損;heat checking熱龜裂;steep temperature gradient溫度梯度高; slider-crank mechanism曲柄滑塊機構;pinion shaft小齒輪軸,驅動軸;press f

2、rame機身,機架;nominal load名義載荷,標稱噸位;overload safety過載保護;BDC-bottom dead center下止點;upright立柱;blank holder slide壓邊滑塊;close-tolerance小公差;wire drawing線材拉拔,拉絲;close-die presses模鍛壓力機;vertical presses 立式機身壓力機;relief valve安全閥;reservoir充液罐,油箱;accumulator蓄能器;residual pressure背壓;emulsion 乳化液;foot treadle腳踏板;idle s

3、wings懸空擺動;1.The dies for use on presses are often designed to forge the part in one blow,and knock-out pins are often incorporated to mechanically eject the forging from the impression.用于熱模鍛壓力機的鍛模常設計成一火鍛造,為從模膛中頂出鍛件常需安裝頂桿。2.Since mechanical presses operate with a fixed,the dies used on these presses

4、are designed so that die filling occurs without the two die halves making contact.由于機械壓力機以固定行程運行,壓力機上的模具設計成填充模具時兩哈夫塊不接觸。3.The dies are subjected to alternating stresses due to loading and unloading during the deformation process,and this causes crack initiation and eventual failure.模具正是由于承受變形過程中加載和卸

5、載的交變應力而產生裂紋直至最終失效。4.In this study,the yield strength value and the hardness value of5kinds of materials were measured.and the result was compared with the theoretical values;the hardness value is3times that of the yield strength.。本研究測定了5種材料的屈服強度和硬度,進行了實驗結果與理論值的對比,硬度約為屈服強度的3倍。 電火花加工示意圖如圖3-17所示。模塊放在裝有

6、電火花加工液的容器里,加工液通常用的是煤油。具有一定形狀的金屬或石墨電極通過伺服控制朝下緩緩向模塊移動。模塊和電極都接通電源就會有電壓,當電極和模塊之間的間隙足夠小時,電壓會產生電火花擊穿這個間隙。電火花頻率為200500,000赫茲,電極和模塊上的部分材料會被電火花熔化。在理想條件下,模塊與電極的損耗比如下:金屬電極為3:1,石墨電極為100:1。從模塊上去除的金屬屑被循環(huán)流動的電解液沖走。因此,模具材料被電火花腐蝕后,在模塊中形成了電極的空間形狀。 鋼帶模沖裁是將鋼帶安裝在硬木上作為模具的工藝。鋼帶沖模與甜餅切刀相似,這種工藝省去了用作落料的剛性凹模。鋼帶制成有待成形零件的外形,并鑲在硬木

7、板或專用的層壓板上。鋼帶及其剪切運動如圖14-32所示。沖頭可用1045鋼,并經火焰淬火后精磨。用于鋼帶模的鋼條厚度在1.44.22毫米范圍,且剪切刃口磨成45 的斜角。鋼帶模適用于精度要求不高、厚度達10毫米的鋁板或1.5毫米的鋼板的小批量沖壓生產。 機械壓力機效力高,適合自動化生產。大部分機械壓力機(包括曲柄式或偏心齒輪式的驅動裝置是以曲柄滑塊機構為基礎的,曲柄滑塊機構將旋轉運動轉變?yōu)橥鶑椭本€運動。偏心軸通過離合器和制動器直接連接到飛輪。在大噸位壓力機的結構中,飛輪裝在小齒輪軸上,偏心輪可獲得一恒定轉矩并將轉矩和飛輪能量通過連桿傳到滑塊。飛輪由電機和三角皮帶驅動,飛輪積聚的能量僅在曲柄轉動

8、的某一瞬間,即材料變形的時候才釋放出來。1.In this study,the yield strength value and the vickers hardness value of5kinds of aluminium alloys were measured.It is shown by the result that the hardness value is3.0±0.2times that the yield strength,coinciding with the theoretical values.本研究測定了5種鋁合金的屈服強度和維氏硬度,結果表明:硬度為屈服

9、強度的3.0±0.2倍,與理論值十分吻合。1、熱固性塑料thermosetting plastics;2、注射模injection mold;3、液壓機hydraulic press;4、板料成形sheet metal forming;5、計算機輔助工藝規(guī)劃computer-aided process planning;6、模鍛壓力機close-die presses;7、原形制造prototype construction;8、進給速度feed rate;9、回程缸return cylinder;10、自由鍛open-die forging;11、draft angle拔模角度;1

10、2、drive mechanism驅動機構;13、photo-curable resin感光樹脂;14、fused deposition modeling熔化沉積制模;15、time-consuming task高耗時的工作;16、mold core型芯;17、material residue料渣;18、automatic tracing自動跟蹤;19、computer-aided engineering計算機輔助工程;20、overload safety過載保護;1、An operation similar to trimming is punching in which excess ma

11、terial on an internal surface is removed.修邊與沖孔工序相似,即沖孔是切除多余材料形成內表面。2、The dies for use on presses are often designed to forge the part in one blow,and knock-out pins are often incorporated to mechanically eject the forging from the impression.用于熱模鍛壓力機的鍛模常設計成一次鍛打就能鍛出工件,為了從模膛中頂出鍛件往往需要安裝頂桿,3、The metal p

12、articles removed from the die block are washed away with the dielectric fluid,which is circulated.Thus, spark erosion of die material reproduces the contour of the electrode in the die block.從模塊上去除的金屬屑被循環(huán)流動的電火花加工液沖走。因此,模具材料被電火花腐蝕后,在模塊中形成了電極的空間形狀。4、The drive of most mechanical presses(crank or eccent

13、ricis based on a slider-crank mechanism that translates rotary motion into reciprocating linear motion.大部分機械壓力機(包括曲柄式或偏心齒輪式的驅動裝置是以曲柄滑塊機構為基礎的,曲柄滑塊機構將旋轉運動轉變?yōu)橥鶑椭本€運動。5、The steel rules are shaped to the outer configuration of the part to be blanked and are inserted in a hard or specially laminated wood backing.鋼帶制成有待成形零件的外形,并鑲在硬木板或專用的層壓板上。注射模注射成型技術的不斷發(fā)展需要越來越多的工藝人員。在設計注射成型工藝中,因為成型車間沒什么影響,即使有,也是注塑機的結構的影響,因此,注射成型工藝最重要的問題無疑是正確設計模具?？傊?在設計注射模選擇幾個型腔時需要有關加工材料的資料,以及注塑機和模具方面的知識。模具費用隨模腔數目的增加而增加,而設備費用則減少。對于給定成型制品所需的生產時間取決于塑件壁厚、注射時間、回程速率、冷卻成型材料及模具的時間及其他時間,如保壓、頂出和停止耽擱的時間等。因此,注射模采