国外木材切削刀具设计理论研究新进展

在综述国外木材切削刀具设计理论新进展的基础上,总结了国外木工刀具行业的先进技术和成果,特别是木工刀具检测技术的新进展.文章着重介绍了圆锯片研究、带锯条研究、刀具磨损和腐蚀、木材铣刀方面的新技术及木材高速切削的一些研究成果,综述了刀具设计和刀具磨损方面新的研究理论.     

我国木工刀具发展的若干问题

木工刀具包括制材刀具、人造板刀具、建筑木材刀具、细木工刀具和木制工艺美术刀具等,是木材加工不可缺少的工艺装备,它和木材加工机械设备具有同等重要的地位。本文将木工刀具的现状和加快发展木工刀具提出看法和建议。 1 我国的木工刀具、刃具与国外先进水平有着明显的技术差距 1.1 精度低综合技术指标远低于国外同类产品。制     

基于离散小波变换与遗传BP神经网络的木工刀具磨损状态监测

[目的]为解决木质家具生产过程中木工刀具磨损造成的加工质量下降和生产成本升高的问题,需要对生产过程中的木工刀具磨损状态进行精确监测.[方法]提出了一种基于离散小波变换与遗传BP神经网络的木工刀具磨损状态监测方法.通过接入机床控制箱的功率传感器采集不同主轴转速、铣削深度和刀具磨损状态下的机床主轴功率信号,使用离散小波变换...     

蒸蒸日上的富林木工刀具制造有限公司

蒸蒸日上的富林木工刀具制造有限公司天津市富林木工刀具制造有限公司，是以山东济南华森石材厂和滕州津鲁金刚石锯片厂为依托，开发、研制、生产和经营各种新型木工刀具和石材刀具的经济实体。本公司以不断地探索、科学的管理、严格的质量和优良的服务，创造了一流的产品...     

现代木工刀具材料与展望

介绍了构成木工刀具材料的各种物质的化学成分及其物理力学性能、刀具材料新品种、新牌号，以及刀具材料与被切工件在物理、力学和化学性质匹配方面的重要性，并对未来木工刀具材料的发展提出预测和展望。     

关于举行“北京国际木工刀具高新技术研讨会”的通知

为推动我国木工刀具技术进步,减少木材生产环节,提高木材利用率和最终产品质量,我所和日本兼房株式会社将于2006年3月7～8日在北京共同举办“北京国际木工刀具高新技术研讨会”。本次研讨会主要针对新型木工刀具及硬化涂层等高新技术的应用等专题进行研讨和交流。会议期间,将由国内外知名的科研院所、高等院校、刀具制造企业、木材加工企业的专家和学者作主题发言,重点介绍国际木工刀具领域的最新科研成果、应用现状及技术发展趋势。木工刀具国际盛会,期待您的参与!一、会议日程2006年3月7日下午,会议代表签到、注册,发放会议资料。2006年3…     

第6讲木工铣刀装夹技术与方法

1 概述 随着木工刀具相关联的技术装备和工件材料的发展,对木工刀具的要求也越来越高,具体表现为:(1)刀具制造精度高;(2)刀具装夹迅速;(3)安装及定位精度高;(4)刀具耐用度长;(5)切削方式优化;(6)刀具工位的分配合理;(7)噪声低;(8)排屑效果好.     

轮廓仪对仿生木工铣刀磨损量的测量应用

木工刀具随着切削过程的进行必然会产生刃口钝化并随使用时间的延长而加重.刀具刃口钝化后必然改变原有的刀具几何形状和切削性能.     

木工刀具磨损机理及抗磨技术

分析了木工刀具的磨损机理,指出机械擦伤磨损是碳钢刀具的主要磨损机理;腐蚀磨损是硬质合金刀具的主要磨损机理。介绍了国内外刀具抗磨技术的研究现状及在木工刀具中的应用情况。     

陶瓷刀具铣削高密度纤维板的磨损分析研究

本试验采用TiC增韧Al_2O_3陶瓷木工刀具对高密度纤维板HDF进行逆铣加工,通过Kistler测力仪进行动态切削力测量,通过扫描电镜(SEM)观察陶瓷刀具的前、后刀面的微观结构,利用能谱仪(EDS)对刀具前、后刀面的磨损微区进行了成分及其含量的分析,揭示了陶瓷木工刀具的铣削磨损机理。研究结果表明:陶瓷木工刀具的切削力随着切削速度的增大而减小、随着加工长度的增大而增大;陶瓷木工刀具切削高密度纤维板主要的磨损形式是:崩刃、后刀面磨损,磨损机理主要表现为磨粒磨损和粘结磨损。     

Performance of coated carbide tools in turning wood-based materials: Effect of cutting speeds and coating materials on the wear characteristics of coated carbide tools in turning wood-chip cement board

This paper reports on the performance of coated carbide tools in turning wood-chip cement board. The coating materials studied were titanium carbonitride (TiCN), titanium nitride (TiN), chromium nitride (CrN), and titanium nitride/aluminum nitride (TiN/AlN), which were synthesized on the P30 carbide substrate. The aim is to investigate the effect of coating materials and cutting speeds on the wear characteristics of the coated carbide tools. Cutting tests were performed when turning wood-chip cement board at cutting speeds of 30, 40, 50 and 60 m/s, a depth of cut of 1mm, and a feed of 0.05 mm/rev. The results of the study show that the coated carbide tools provided better performance than the P30 carbide tool, especially in terms of reducing the progression of the wear rate and clearance wear. The TiN/AlN-coated carbide tool showed the smallest increase in both wear rate and clearance wear with an increase in cutting speed and had the longest tool life among the coated carbide tools investigated. Though the TiCN-coated carbide tool was observed to have a low wear rate and low clearance wear for cutting speeds of 30 and 40m/s, when the cutting speeds were >50m/s its wear rate and clearance wear were almost the same as those of CrN-and TiN-coated carbide tools, which had high values for these parameters.Part of this paper was presented at the 21st IUFRO World Congress, August 2000, Kuala Lumpur, Malaysia     

表面涂层木工刀具的研究进展

介绍几种表面涂层木工刀具的加工方法和使用状况,分析表面涂层刀具的切削特点和磨损形态,概述了国内外研究进展.研究成果表明,涂层处理可以延长刀具使用寿命,减少刃磨和换刀时间,提高生产效率和表面加工质量.     

刀具前角与切削量对柠条材切削力影响的研究

内蒙古地区灌木资源十分丰富,柠条、沙柳等灌木是防风固沙的优良树种,同时又是生产人造板的优质原料,但在削片加工过程中存在木片质量不稳定、树皮切不断等问题。从刀具前角和切削量对柠条材切削力的影响进行深入研究,寻求柠条材最佳切削参数,以改进削片机性能,提高柠条材削片质量,为新型沙生灌木削片机的设计与研制提供理论依据。     

Performance of coated carbide tools when grooving wood-based materials: effect of work materials and coating materials on the wear resistance of coated carbide tools

This paper presents the performance of coated carbide tools when grooving various density hardboards and wood-chip cement boards. Work materials of low density (about 0.8g/cm³) and high density (about 1.2g/cm³) were tested. The coating materials studied were chromium carbide, titanium carbonitride, and titanium carbide, which were synthesized on P30 carbide substrate using a chemical vapor deposition method; titanium nitride, chromium nitride, and titanium carbonitride were synthesized using the physical vapor deposition method. Cutting tests were performed during grooving at a cutting speed of 1000m/min and a feed rate of 0.1 mm/rev. The results of the study show that the coated carbide tools are more advantageous in reducing the progression of tool wear and retaining lower normal force and noise level when cutting both hardboard and wood-chip cement board of high density than was the uncoated carbide tool. The wear rate of the coated carbide tools for the wood-chip cement board increased more rapidly than that of the hardboard with increasing densities. Though the coated carbide tools suffered more wear with the low-density wood-chip cement board than with hardboard, their normal force and noise level were always lower for the low-density wood-chip cement board.Part of this paper was presented at the 11th Annual Meeting of the Chugoku Shikoku branch of the Japan Wood Research Society, Matsue, Shimane, September 25, 1999     

STUDY ON MEASUREMENT OF WOOD SURFACEROUGHNESS BY COMPUTER VISION

The working processes,machining devices and tools,cutting amount,consumptionof materials,productivity and quality of products are directly affected wood surface roughness.This paper gives an extensive review of methods used previously to measure wood surfaceroughness,and concludes that computer vision is the most suitable.The preliminarystudy shows that computer vinon method has the advantages of a noncontact,three--dimensionalmeasurement,high speed and well correlates with stylus tracing method.The method can be usedin classification and in-time measurement of wood surface roughness after being improved.     

Corrosive-wear characteristics of diamond-coated cemented carbide tools

Continuous milling tests with diamond-coated and uncoated cemented carbide tools and polycrystalline diamond tools were carried out on air-dried and wet melapi (Shorea sp.) and western redcedar (Thuja plicata D. Don). These tools were examined for corrosive-wear characteristics of the tool-edge appearance, cutting-edge profile, edge recession, and cutting-power consumption. The tool surfaces were observed with a scanning electron microscope and were analyzed by energy-dispersive X-ray spectroscopy. Based on these examinations, the occurrence of corrosive wear while cutting wet woods was confirmed for the uncoated and polycrystalline diamond tools. In contrast, the coated tools did not exhibit corrosive wear, nor did delamitation or wear of the diamond film occur with any of the work materials. The diamond-coated tools showed high resistance not only to mechanical wear but also to corrosive wear.The results of this work were presented at the 48th annual meeting of the Japan Wood Research Society, Shizuoka, April 1998     

草坪打洞刀具运动轨迹的分析

介绍了打洞刀具的几种常见形式，从刀具的入土形式和刀具的滚动形式两方面对打出洞的质量进行了分析，确定了刀具运动的理想曲线。     

三花冬青嫩枝扦插繁殖技术

运用单因素试验研究植物生长调节剂、扦插基质和带踵扦插等因素对三花冬青扦插生根的影响,结果表明3个因素对三花冬青扦插生根影响差异显著,采用当年生半木质化插条,黄心土为基质,IAA 250 mg·L-1或IBA 500 mg·L-1蘸根处理15 s,带踵扦插等技术措施,可以显著提高三花冬青嫩枝扦插的生根率,在生产中具有较高的应用价值。     

The influence of technical characteristics of wood milling tools on its wear performance

Influence of technical and chemical characteristics of industrial wood milling tools on its wear was analysed. Four tools of different manufacturers were subjected to the research. Lithuanian oak wood was chosen for the research as a reference material. Behaviour of cutting tools was assessed on the adopted industrial thickness planer SR3-6 with cutting speed of 31 m/s. Wear performance was evaluated on milling the specimens until 3200 m of true cutting length. Summarising achieved results, the following can be stated: chemical composition of tool and heat treatment schedule has great impact on the tool edge wear. The highest wear resistance was reached on testing tools made of CT01M-LA2; tools made of high-alloyed tool steel 8X6HΦT have presented the highest cutting edge radius and edge recession in each type of test as compared with tools made of high-speed tool steels Z80WCV18-04-01/18-0-1 and HS18-0-1, respectively. All these tools are suitable for oak wood processing. The high-alloyed tool steel shows similar wear performance as high-speed tool steels.     

硬质木材榫槽组合铣刀设计的研究与实现

为解决小型台式多用木工机床加工硬质木材榫槽难的问题,设计了一款组合铣刀.以数块窄刀刃圆锯片组合代替宽刀刃,多刀刃代替双刀刃,组合时锯齿刀刃错位排列,各段直刃呈螺旋状,采用大前角改善切削性能,齿廓优化成刨削锯齿状以提高锯齿的耐用度和使用寿命.该铣刀具有分块式切削刀刃,切削性能优良,加工硬、软质木材榫槽时的进料速度比直齿双刃盘式成型铣刀提高3倍.