blank drawing 中文意思是什麼
blank drawing
解釋
毛坯圖-
Analyse the tooth geometry of klingelnberg cyclo - palloid spiral bevel gear., according to the relative position and kinematic relation of the cutter heads, virtual crown gear and the processed wheel blank, established the system of coordinates of the gear cutting, dedcuced the tooth face equation of the virtual crown gear, according to relations of the gear cutting and space theory of engagement, deduced the tooth face equation of klingelnberg cyclo - palloid spiral bevel gear, and drawing the three - dimensional graphs of the virutal crown gear and klingelnberg cyclo - palloid spiral bevel gear according to the design and setting parameters
對克林貝格擺線齒錐齒輪進行齒面幾何分析。根據銑齒加工中刀盤、搖臺和輪坯的相對位置和相對運動關系建立了切齒嚙合坐標系，由矢量的旋轉推導了產形輪齒面方程;根據空間嚙合原理和切齒嚙合關系推導了被加工齒輪的齒面方程;由設計參數和銑齒調整參數計算得到齒面離散數據，繪制了產形輪和擺線齒錐齒輪的三維齒形。 -
First calculation method : doing horizontal projection drawing on drawing piece, k value is introduced by area equation of projection drawing, k value is obtained by area equation, along outline of projection drawing to add k value, that is, outline shape of blank drawing, principle area - equal and shape similar are used. second calculation method : along outline of drawing piece horizontal projection drawing, to do normal line of penetration line for wantonly point of this point, to obtain high of drawing piece on this point normal line, point and point is to form outline shape of blank
計算方法之一為k值法：作拉深件水平投影圖，在該投影圖面積方程中引入k值，利用面積相等原理解方程，求得k值，沿水平投影外沿加上k值，即為毛坯圖的外廓形狀。計算方法之二為拉深線法：沿拉深件水平投影圖外廓，在任意點作該點切線的法線，在該法線上以該點拉深件的高度為量，在法線上取截點。 -
In the paper, the finite element simulation software dynafrom is applied to analyze the affect of different blank holder during the forming process of laminose stepped tubular part, predict the possible defects such as wrinkle and break, obtain the rational style of blank holder avoiding the occur of defects and determine the rational configuration of die. the forming affect of thin - wall shallow stepped tubular part is analyzed when using different lubricate condition ( friction coefficient ). by this method, the relationship between friction coefficient and drawing depth of laminose stepped tubular part is obtained
本文利用有限元模擬軟體dynafrom分析了不同類型的壓邊圈對薄壁階梯筒形件成形過程的影響規律，預測了採用不同類型壓邊圈時可能出現的成形缺陷如起皺和拉裂，獲得了防止缺陷產生的合理壓邊圈形式，確定了合理的模具結構形式；分析了不同的潤滑條件（摩擦系數）對薄板階梯筒形件成形的影響，獲得摩擦系數與薄板階梯筒形件的拉深深度的關系；分析了階梯筒形件成形過程中的不同階段的應力應變分佈、毛坯材料厚度變化情況，並獲得了階梯階梯筒形件能一次拉深成形的條件。 -
Main product : tungsten carbide powder, roll ring, anvil and cylinder, mining button bit, dies nib for various application : cold heading dies, drawing dies and non - magnetic carbide dies. all of the products mentioned above could be offered in blank or finishing product
公司主要產品有：碳化鎢粉硬質合金輥環頂錘和壓缸冷鐓模無磁合金礦山柱拉絲拉管模棒材板材非標模具及硬質合金精密加工產品等，廣泛應用於鋼鐵標準件金剛石粉末冶金石油礦山磁性材料機械加工電子等行業。 -
Drawing piece unfold size is one basic condition under the calculation on coefficient, number of drawing, handbooks or books of press are not given, practice press production, die designer designs drawing die by experience calculation, after testing, according to deformation, state, defect shape of testing blank, shape and unfold size is revising, finally, unfold size and shape of blank are determined, designing period is longer, cost of die and work piece is to raise, economic benefit is to reduce
拉深件展開尺寸是拉深可行性分析中計算拉深系數與拉深次數的前提條件，現有沖壓手冊或教材對于復雜拉深件的展開尺寸計算尚未論述。復雜拉深件的沖壓生產中，模具設計者憑經驗估計拉深可行性，設計製造拉深模進行反復試壓，根據試壓件的形變狀態，缺陷形貌，制定坯料展開尺寸和形狀，周期較長，因而生產成本高，經濟效益不佳。 -
Deep drawing experiments were carried out for tailor - welded blank square boxes
摘要本文對拼焊板方盒件的拉深成形進行了試驗研究。 -
Based on energy theory, wrinkling criterion in deep drawing for axisymmetric parts is derived to take geometry parameters, friction coefficient, material properties, and the law of critical blank - holder force ( bhf ) of side wall wrinkling in the constraint condition of initial wrinkling into account
從能量平衡原理出發，通過對屈服準則的線性化處理，推導了考慮幾何參數、摩擦系數和材料性能參數、板材皺曲時約束條件的軸對稱拉深成形過程中側壁起皺臨界壓邊力的變化規律，給出了皺曲判據。 -
This system has the friendly windows for dialogue between person and machine, can draw and label the plan of each roll groove with the way of parameterization drawing, under the condition that giving the size of the rough blank the specifications of the finished product and the technical parameters of the roll, selecting the minimum consumption as the target function, adopting the optimization, adopting the boundary condition of the grip the strength of roll and the check of the power - generating. moreover, the plan can be outputted in the software of autocad
本系統具有友好的人機對話界面，可以在給定坯料尺寸、成品尺寸和軋機技術參數的條件下，以能耗最小為目標函數，採用最優化方法，在滿足咬入條件、軋機強度校核、電機校核等邊界條件下優化設計出最優的孔型系統，採用參數化繪圖方法將優化設計結果繪製成孔型圖並進行標注，最終可以向autocad繪圖軟體輸出。 -
In sheet metal forming, the determination of shape and dimension of blank is the precondition of analysis of part ' s deformation, process of design and drawing up of process rules
確定沖壓件展開板料的形狀及尺寸，是分析沖壓件變形程度，設計工藝性及擬訂工藝規程的前提。 -
The so - called " turning ", refer to operating workers ( namely lathe work ), utilize rotatory sport of work piece and cutter team cut sport is it change size and form of blank to come first according to the request of drawing pattern at lathe, make it become a kind of metal cutting method of the acceptable product
所謂「車削」 ，是指操作工人（即車工）在車床上根據圖紙圖樣的要求利用工件的旋轉運動和刀具的先隊切削運動來改變毛坯的尺寸和形狀，使之成為合格產品的一種金屬切削方法！ -
In the last chapter of this thesis, we introduce two kinds of sheet metal parts. one is forming part which require very accurate prediction of blank shape, the other is drawing part which need just approximate prediction of blank shape. we apply the scale coefficient method to predict the blank shape of these two kinds of sheet metal parts
文中最後一章，給出了兩類典型的沖壓零件，一類是落料后直接成形的零件，該類零件初始板料的形狀及尺寸要求非常精確;另一類是兩次拉延成形的零件，這類零件的初始板料要求適合的形狀及尺寸即可。 -
In this thesis it was proposed to simulate the drawing, trimming, flanging by using error - adjustment method. the initial trimming lines would be adjusted and optimized in the computer by adjusting error. if the shape error between the flanging boundary line and the target is larger than prescribed, the redundant area is subtracted from the initial blank by some amount of volume along the deformation path, and the insufficient volumes are added to the initial blank by the same amount
本文提出，利用基於變形路徑的誤差修正法（ error - adjustment ） ，結合cae技術將對初始修邊線的調試過程在計算機中進行模擬（包括拉延、修邊、翻邊、整形等）計算，通過控制翻邊后零件成型邊界與實際目標輪廓之間的尺寸誤差來優化修邊線，如果初始切邊、翻邊后的輪廓與目標體的邊界存在較大偏差，則初始切邊輪廓中多餘部分單元將沿其變形路徑以相同體積量被切除，不足部分則沿其變形路徑以相同體積進行補償。 -
By the net - shape forming technology, metal sheet is used as a blank, the cylindrical cup is produced through blanking, deep drawing, and etc, and then the cup is clamped to a mandrel rotated together with the main spindle, the pulley is finally produced by several different spinning rollers, which apply the radial spinning forces to the cup in different positions
鈑制帶輪是以金屬板料為毛坯，經過落料、拉深等沖壓工序製成圓筒狀，然後將其裝夾在帶有頂壓座的芯模上，使其隨主軸一起旋轉，通過若干不同齒形的旋壓成形輪分別沿徑向施加壓力而成形。 -
I keep drawing a blank. that ' s a real let down
我的希望一直落空，這真叫人失望。 -
I ` m drawing a blank ! this just seems cruel
我什麼畫不出來!這是多麼殘酷的事實 -
I am drawing a blank
我腦子一片空白 -
The limiting drawing rate is a very important index of blank ' s pressing capability, and it is the basic reference deciding to drawing pressing technology
坯料的極限拉深系數是一種重要的沖壓性能指標，它是決定拉深工藝方法的基本依據。 -
The die supplier will furnish in writing the developed blank size along with the preliminary tool drawing ( s )
在提交初級設計的同時供應商應提供下料尺寸。 -
On the basis of the sketch of use and significance of blank - holder force in production, the effects on the formability of box deep drawing process were investigated with the dynaform, which was applied to the variable blank - holder force ( vbhf ) changing with the deep drawing time and the position of the vbhf
在概述壓邊力在生產過程中的用途和意義的基礎上，討論了變壓邊力對薄板拉深成形過程的影響，利用dynaform模擬軟體研究了隨拉深時間和壓邊圈位置變化的壓邊力對拉深成形質量的影響，得到了相應的數值模擬結果，為實際生產過程中合理調節壓邊力的大小提供了理論依據。 -
The distribution of stress and strain and the variety of blank thickness is analyzed during different forming stages of laminose stepped tubular part. the condition of one - off drawing of laminose stepped tubular part is obtained. plasticity theory and numerical simulation technology of finite element are applied synthetically to analyze the forming technological characteristic of stepped tubular part,
通過綜合應用塑性力學理論、有限元數值模擬等手段成功地分析了階梯筒形件成形工藝特點，獲得了階梯筒形拉深的合理工藝方案及階梯筒形件一次拉深成形的規律，最後通過實驗檢驗對此工藝方案及規律進行了驗證，結果表明本文所提出的工藝方案及階梯筒形件一次拉深成形規律是正確可靠的，能直接用於指導生產。
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