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
At present company product has " in treasure card " table drilling machine, vertical drilling machine, tapper, get milling machine, automatic feed drilling machine, gear drilling machine, auger attack amphibious machine tool, the 8 old series such as radial drilling machine, more than 60 kinds of breed
目前公司產品有「中寶牌」臺式鉆床，立式鉆床，攻絲機，鉆
銑床，自動進刀鉆床，齒輪鉆床，鉆攻兩用機床，搖臂鉆床等八大系列，六
十多種品種。
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。
The heng zhong group found in 80 ' s, owns several years produce manufacturing experience of many years, is a profession group that produce the ganting boring and milling machine, and heavy type lather of business enterprise, gather a tool machine development, produce, sell, service at the whole body, own strong technique strength, high accuracy of large process an equipments, strict of examination means, the quality of science management system, modern of design principle, provide more high - quality productions for you
恆重集團創立於八
十年代，擁有多年生產製造經驗，是一家專業生產重型龍門龍門鏜、
銑、磨、刨以及重型車床的企業，集機床開發、生產、銷售、服務於一身，擁有雄厚的技術力量，高精度的大型加工設備，嚴格的檢測手段，科學的質量管理體系，現代化的設計理念，為您提供更優質的產品。
The study work in the dissertation is an important part of the tenth five - year defence advanced research project of “ study on control technology of the machining distortion for complex structure parts ” supported by pla general armament department of china. theoretical analysis and experimental study are carried out on the initial residual stresses and their effects on milling distortion for thick aero - aluminum - alloy plate
本文作為總裝備部「十五」預研項目「復雜結構件加工變形控制技術研究」的主要組成部分，以航空鋁合金厚板為對象，研究重點定位在其初始殘余應力分佈規律及其對數控銑削加工變形的影響。
