欢迎来到麦多课文档分享! | 帮助中心 海量文档,免费浏览,给你所需,享你所想!
麦多课文档分享
全部分类
  • 标准规范>
  • 教学课件>
  • 考试资料>
  • 办公文档>
  • 学术论文>
  • 行业资料>
  • 易语言源码>
  • ImageVerifierCode 换一换
    首页 麦多课文档分享 > 资源分类 > PDF文档下载
    分享到微信 分享到微博 分享到QQ空间

    FORD WSE-M1A303-A2-2011 GRAY CAST IRON - HARDENABLE CAMSHAFT TO BE USED WITH FORD WSS-M99P1111-A 《灰口铸铁 可固化凸轮轴 与福特WSS-M99P1111-A 一起使用 在福特WSE-M1A303-A1中显示》.pdf

    • 资源ID:750025       资源大小:42.80KB        全文页数:5页
    • 资源格式: PDF        下载积分:10000积分
    快捷下载 游客一键下载
    账号登录下载
    微信登录下载
    二维码
    微信扫一扫登录
    下载资源需要10000积分(如需开发票,请勿充值!)
    邮箱/手机:
    温馨提示:
    如需开发票,请勿充值!快捷下载时,用户名和密码都是您填写的邮箱或者手机号,方便查询和重复下载(系统自动生成)。
    如需开发票,请勿充值!如填写123,账号就是123,密码也是123。
    支付方式: 支付宝扫码支付    微信扫码支付   
    验证码:   换一换

    加入VIP,交流精品资源
     
    账号:
    密码:
    验证码:   换一换
      忘记密码?
        
    友情提示
    2、PDF文件下载后,可能会被浏览器默认打开,此种情况可以点击浏览器菜单,保存网页到桌面,就可以正常下载了。
    3、本站不支持迅雷下载,请使用电脑自带的IE浏览器,或者360浏览器、谷歌浏览器下载即可。
    4、本站资源下载后的文档和图纸-无水印,预览文档经过压缩,下载后原文更清晰。
    5、试题试卷类文档,如果标题没有明确说明有答案则都视为没有答案,请知晓。

    FORD WSE-M1A303-A2-2011 GRAY CAST IRON - HARDENABLE CAMSHAFT TO BE USED WITH FORD WSS-M99P1111-A 《灰口铸铁 可固化凸轮轴 与福特WSS-M99P1111-A 一起使用 在福特WSE-M1A303-A1中显示》.pdf

    1、 ENGINEERING MATERIAL SPECIFICATION Material Name Specification Number Date Action Revisions Rev 03 2011 12 15 N Status No Usage S. Ryzyi, NA 2002 09 26 Revised Updated and renumbered 1990 06 15 C10079663 Released G. Lane/N. Riley EAO/R. Graham NAAO Controlled document at www.MATS Page 1 of 5 Copyri

    2、ght 2011, Ford Global Technologies, Inc. GRAY CAST IRON - HARDENABLE CAMSHAFT WSE-M1A303-A1 GRAY CAST IRON - HARDENABLE CAMSHAFT WSE-M1A303-A2 NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a chromium and molybdenum alloy gray cast iron. Grade A2 specifies highe

    3、r bearing journal hardness. 2. APPLICATION This specification was released originally for material used for camshafts and oil pump drive gear shafts made by the shell mold or green sand casting process. The lobes are subsequently flame or induction hardened. 3. REQUIREMENTS 3.1 STANDARD REQUIREMENTS

    4、 FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.2 CHEMICAL COMPOSITION (Weight Percent) Carbon (total) 3.15 - 3.75 Silicon 1.95 - 2.60 Manganese 0.60 - 1.10 Phosphorus 0.20 max Sulphur 0.1

    5、5 max Chromium 0.85 - 1.30 Molybdenum 0.35 - 0.60 Copper 1.0 max * Specific composition limits and foundry practices to meet performance and manufacturing requirements will form part of an agreed Control Plan for individual component geometries and process routes. Composition shall be selected gener

    6、ally from within the above range in order to meet microstructural, machinability, hardenability and strength requirements. Note; * Copper, optional, increases matrix hardness without significant increase in carbide content which can be detrimental to machining. ENGINEERING MATERIAL SPECIFICATION WSE

    7、-M1A303-A1/A2 Page 2 of 5 Copyright 2011, Ford Global Technologies, Inc. 3.3 MECHANICAL PROPERTIES 3.3.1 ULTIMATE TENSILE STRENGTH (UTS) (ASTM E 8M/ISO 6892) Standard Test Bar, MPa, min 220 or Diabolo Test Bar, MPa, min 230 (DIN 50109) The UTS values above are for information only and refer to separ

    8、ately cast test bars. Test bar diameters and solidification rates should be such that the microstructure and properties are commensurate with the shaft area of the component. Test bars machined from components should be taken from camshaft quill locations (shaft), and these values can be used as a m

    9、easure of flexural strength. Unless otherwise specified on the print, the minimum value for UTS in test bars machined from components shall be 220 MPa. 3.3.2 HARDNESS (unless otherwise stated on Engineering drawing) (ASTM E 10/ISO 6506; ASTM E 18/ISO 6508) A1 A2 Bearing Journals HB 183-341 HB 235-34

    10、1 For large volume survey on as cast shafts, agreement may be reached between foundry and manufacturing on the position of checking bearing hardness providing the finished component hardness is met. This agreement is to be part of the control plan. On finished shafts, bearing hardness to be measured

    11、 on the centre line to avoid possible influence of adjacent cam hardening. Distributor Drive Gear, HB 183-341 HB 235-341 Cams, Eccentric Separately Cast Gears eg: Distributor Drive Gear HB 183 min HB 235 min Note: By agreement between manufacturing and foundry, the above values may be modified local

    12、ly for machinability purposes provided final component hardness requirements are fully met. Hardness and microstructure should be considered attribute data only. Cam and Eccentric (after surface hardening) HRC 50 - 62 Note: Correction factors for surface curvature are applicable on the above HRC val

    13、ues. ENGINEERING MATERIAL SPECIFICATION WSE-M1A303-A1/A2 Page 3 of 5 Copyright 2011, Ford Global Technologies, Inc. 3.4 MICROSTRUCTURE - As Cast Camshaft Only 3.4.1 Carbide Pattern Location (Unless otherwise specified.) A carbide containing zone shall be present as per 3.5 which must be examined in

    14、an area which will represent the finish machined surface ie. allowing for machine stock removal. 3.4.2 Carbide Distribution and Content (Unless otherwise specified) After allowing for machining, carbide distribution and content as per 3.5 in a matrix of predominantly fine lamellar pearlite. (See par

    15、a 4.2 GENERAL INFORMATION for measurement procedure) Note: Microstructure should be considered attribute data only. 3.5 MICROSTRUCTURE - Finished camshaft only 3.5.1 General A carbide containing zone shall be present at the cam nose and flanks. The zone depth shall be, at minimum, 3 mm at the nose,

    16、tapering down the flanks to the flank/base circle run out. The section for determining the carbide containing zone dimensions shall be taken 3.0 mm from the cam edge. The matrix of the surface and immediate supporting layer, within the hardened zone, shall consist of martensite without excessive amo

    17、unts of retained austenite; see para 4.2.3. Microstructural transformations caused by machining processes after surface hardening are not allowed. 3.5.2 Carbide content WSE-M1A303-A1: Unless otherwise specified on the drawing (depending upon the specific cam/tappet geometries and material combinatio

    18、n), the cam contact surface (within the designated zone) shall contain an average value of 5 % min to 30 % max carbide, by area, when 9 fields are viewed at 100 to 250X mag.immediately below the surface. 3.5.3 WSE-M1A303-A2: Unless otherwise specified on the drawing, the cam contact surface within t

    19、he designated zone shall contain an average value of 7 % max carbide, by area, when 9 fields are viewed at 100 to 250X mag. immediately below the surface. No one field shall be less than 5 % or greater than 30 % carbide. A cellular carbide network with an 0.8 mm max mesh size is acceptable. Local br

    20、eaks or discontinuities in the carbide network are permitted. (See para 4.2 GENERAL INFORMATION for measurement procedure.) ENGINEERING MATERIAL SPECIFICATION WSE-M1A303-A1/A2 Page 4 of 5 Copyright 2011, Ford Global Technologies, Inc. 3.5.4 Gears and Bearings The structure shall be Type VII flake gr

    21、aphite predominantly distribution A size 4 (ASTM A 247) in a matrix of fine pearlite with some carbide networks. 3.6 CLEANLINESS Finished component shall be free of loose sand, oxide and scale. 4. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting

    22、 the requirements of the specification. 4.1 HARDENING RESPONSE The achievement of HRC 50-62 at the cam lobe and eccentric surface is dependent not only on camshaft characteristics but the employment of correct hardening parameters. It may be necessary to specify quench type and temperature, e.g. ESE

    23、-M99C43-A Fast Quench Oil at 54-66 C, to obtain optimum response. ENGINEERING MATERIAL SPECIFICATION WSE-M1A303-A1/A2 Page 5 of 5 Copyright 2011, Ford Global Technologies, Inc. 4.2 ASSESSMENT OF MICROSTRUCTURE 4.2.1 Carbide Distribution (Machined Camshaft) Macrosection, nital etch, view at 15 x magn

    24、ification nominal. (Non-destructively, view phosphated nose sector over designated chill zone at suitable known magnification, to assess surface distribution only). 4.2.2 Carbide Content Carbide content may be assessed using ASTM E 562, WSD-M99A4-A or acceptable Image Analysis techniques. In cases o

    25、f dispute, the referee method of assessment to be ASTM E 562. Note: For purposes of control and in cases of supply dispute, carbide distribution and content may be determined on as cast components making due allowance for machining. Content may vary from the lower specified amount at the gated end t

    26、o the higher specified amount at the non-gated end. 4.2.3 Retained Austenite High levels of retained austenite are considered undesirable because of its affect on wear properties and increased risk of cracking during manufacturing. Levels may be assessed metallographically and if above 20%, should be more accurately determined by X-ray diffraction. Confirmed levels above 25 % are considered unacceptable. 4.3 BEARING HARDNESS WSE-M1A303-A2 with higher bearing hardness will generally be required for smaller bearings having relatively lower surface contact area.


    注意事项

    本文(FORD WSE-M1A303-A2-2011 GRAY CAST IRON - HARDENABLE CAMSHAFT TO BE USED WITH FORD WSS-M99P1111-A 《灰口铸铁 可固化凸轮轴 与福特WSS-M99P1111-A 一起使用 在福特WSE-M1A303-A1中显示》.pdf)为本站会员(brainfellow396)主动上传,麦多课文档分享仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对上载内容本身不做任何修改或编辑。 若此文所含内容侵犯了您的版权或隐私,请立即通知麦多课文档分享(点击联系客服),我们立即给予删除!




    关于我们 - 网站声明 - 网站地图 - 资源地图 - 友情链接 - 网站客服 - 联系我们

    copyright@ 2008-2019 麦多课文库(www.mydoc123.com)网站版权所有
    备案/许可证编号:苏ICP备17064731号-1 

    收起
    展开