Disigning coolant channel on the firebox of liquid rocket engine to loxodrome ( equal - angle helix ) groove can improve firebox coolant capability greatly. because the width dimension of loxodrome groove is narrow and the depth is deep, some machining methods are incapable, such as end - milling or electrochemistry. according to the peculiarities, a cnc disk - cutter - milling method which is composed of five motion axes with four simultaneously interpolated ones is researched. because most firebox generatrix is composed of complex curves, it is very difficult to get cnc cutting program with manual means. in order to deal with the problem, the loxodrome mathematics model is studied, and an auto - programming software system is developed. the software system can generate cnc cutting program of loxodrome on many kinds of turned surface. the constriction - distension segment of firebox is the most representative workpiece. the sharp changing of its generatrix slope makes loxodrome milling difficult. with the theory analyzing and practice cutting experiment, some applied techniques, which include milling mode and direction, choosing cutter diameter and cutting start point setting, are developed. adopting the technology above, tens regular workpiece have been manufacturing. the two - year manufacture practice has confirmed the validity and feasibility of developed loxodrome coolant channel milling method. the developed technology is also worth to be referenced to other similar workpiece
將液體火箭發動機燃燒室的冷卻通道設計為斜航線(等傾角螺旋線)槽形,可以大幅度改善燃燒室的冷卻性能.斜航線冷卻槽的槽寬尺寸較小而槽深尺寸較大,所以無法使用棒
銑刀
銑削、電化學等加工方式.針對這些特點,提出了五軸控制、四軸聯動的數控片
銑刀
銑削加工方法.由於燃燒室外表面的母線輪廓復雜,手工編制數控加工程序難度大.為了解決數控加工程序的編制問題,研究了斜航線的數學模型,開發了自動編程軟體系統.使用該系統,可以生成多種母線輪廓回轉體外表面上的斜航線數控加工程序.燃燒室收斂-擴張段的母線斜率變化大,加工難度大,是斜航線冷卻通道加工的最典型工件.經過理論分析和實際切削實驗,研究了針對該類型工件的片
銑刀直徑選擇、
銑削方式和方向、刀
具調整和起刀點的設置等多項實際的加工方案.採用上述的一系列技術,已經成功地加工了數十個合格工件.經過兩年多的實際生產過程應用,驗證了所開發的斜航線冷卻通道加工方法的正確性和可行性.這些加工技術的研製成功,對其他相似類型零件的加工亦
具有參考意義
Spiral groove machine screws taper shank tools such as milling units
機絲錐柄立
銑刀等工
具廠家。
It has the multi - function of cutting side, rotating angles, grinding side and milling stone line. as a durable equipment with sealed lubricant tracks, it can cut stone to the very precision
本機
具有切邊、倒角、磨邊,
銑石線功能,導軌採用油浸式密封防護,切割精度高,經久耐用。
Tools for woodworking, safety requirements - milling tools, circular saw blades
木工刀
具安全
銑刀圓鋸片
Tools for woodworking - safety requirements - part 1 : milling tools, circular saw blades
木工工
具.安全性要求.第1部分:
銑刀和圓鋸片
Tools for woodworking - safety requirements - requirements for the shank of shank - mounted milling tools
木工工
具.安全性要求.刀柄安裝固定的
銑刀的刀柄要求
Tools for woodworking - safety requirements - part 1 : milling tools, circular saw blades ; german version en 847 - 1 : 2005
木工工
具.安全要求.第1部分:
銑刀和圓盤鋸片
Tools for woodworking - safety requirements - part 2 : requirements for the shank of shank mounted milling tools
木工工
具.安全要求.第2部分:裝刀柄
銑刀的刀柄的要求
Tools for woodworking - safety requirements - part 2 : requirements for the shank of shank mounted milling tools ; german version en 847 - 2 : 2001 ac : 2003
木工加工用刀
具.安全要求.第2部分:安裝在
銑刀上的刀
The enterprise pokolm fr ? stechnik gmbh & co. kg offers possibilities within the range milling spindles and solid carbide tools as well as milling tools
Kg作為一家專業的供貨商為您提供高質量的
銑床主軸,
銑削刀
具,整體硬質合金工
具。
Our products ( “ aa ” brand ) consist of milling tools, thread tools, turning tools, holders for cnc, tools made from hssco and various non - standard cutting tools
哈申公司生產的「 aa 」牌刀
具包括:
銑削刀
具、螺紋刀
具、車削刀
具、數控刀
具工
具系統,以及各類高性能高速鋼刀
具和各種非標刀
具。
Safety of transportable motor - operated electric tools. part 2 : particular requirements for single spindle vertical moulders
可移式電動工
具的安全第二部分:單軸立式木
銑的專用要求
The effect of cutting speed, cutting thickness, cutting knife and materials on the working power capacity is discussed. finally tractive property of road plane milling machine is also studied. through the comparison of the results of theory calculation and experimental results the equation of working power capacity of milling machine is modified
本文對冷式瀝青路面
銑刨機的動力學工作過程進行了理論分析與試驗研究,並利用金屬材料切削的基本原理,研究了主切削力,並從能量轉化守恆的角度推導了
銑刨機
銑刨作業阻力和功率計算公式,討論了機器切削速度、
銑刨厚度以及刀
具與材料特性對
銑刨作業阻力和功率的影響規律,最後討論了
銑刨機牽引性能,且通過試驗研究驗證了
銑刨作業阻力和功率公式。
Meixing electronics factory is major in the vacuum tube stereo power amplifier, which is located in the nanhai city , owned a workhouse over 1300 square meter, with five plant, they are box, seal and transformer circling 、 debugging & check, we also have the machine process, such as milling machine 、 punch 、 drill press 、 electric welding 、 matrix 、 incision machine, and radio tube test machine. we have realize the product line manufacture, the monthly whole output is over 200 sets
美星電子是一個專業製造真空管身歷聲功率放大器的加工廠,位於廣東南海市黃岐工業區,擁有廠房一千三百平方米,工廠分機箱加工、焊接組裝、變壓器繞制、煲機老化、調試檢測五個車間,機械加工設備擁有銑床、沖床、創床、鉆床、電焊、模具製作、切割等二十多臺,電子管及整機檢測調試儀器十餘臺,該廠實現了配套設備、流水作業,每月可生產膽機二百臺以上,可謂中國專業生產膽機最大規模的工廠。