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805783-2 PDF预览

805783-2

更新时间: 2024-10-28 23:27:27
品牌 Logo 应用领域
泰科 - TE 连接器连接器支架
页数 文件大小 规格书
8页 699K
描述
CRIMPER, INSULATION (.210" OV)

805783-2 技术参数

生命周期:ActiveReach Compliance Code:unknown
风险等级:5.62连接器支架类型:TOOL AND MACHINERY
Base Number Matches:1

805783-2 数据手册

 浏览型号805783-2的Datasheet PDF文件第2页浏览型号805783-2的Datasheet PDF文件第3页浏览型号805783-2的Datasheet PDF文件第4页浏览型号805783-2的Datasheet PDF文件第6页浏览型号805783-2的Datasheet PDF文件第7页浏览型号805783-2的Datasheet PDF文件第8页 
Wear will generally manifest itself more significantly at edges of a surface. However, adhesive wear is often ob-  
served over substantial areas of the tooling. It is important to note here that the wire crimper is the component  
most susceptible to adhesive wear. Generally, adhesive wear will be directly related to load and to the amount of  
relative movement between the two materials. Although the anvil may have equal loading, the amount of relative  
movement between the terminal and tooling is many times more at the crimper than at the anvil. The insulation  
crimper typically experiences lower adhesive wear because the load is reduced compared to the wire crimp and  
the relative movement is less than that of the wire crimper, since there is no terminal and wire extrusion at the in-  
sulation crimp.  
Adhesive wear can be controlled in the selection of the material. Different alloys exhibit better or worse wear properties.  
These properties can be measured and are well documented. Adhesive wear  
is inversely proportional to the hardness of the material. Thus, the harder the material, the less adhesive wear. In crimp  
tooling, there is often a tradeoff that is made. In order to achieve higher wear resistance, the material often exhibits  
lower toughness by composition, hardness, or both. The final material selection is often based on years of experience.  
One material may have high wear characteristics and lower toughness, and be suitable for a small terminal since the  
margin of safety on stress is high. Another terminal may be large and the toughness could be of more importance due a  
lower stress design margin. The ability to design and manufacture crimpers from several materials will enable optimal  
material selection for a specific application.  
The final property that affects adhesive wear is surface finish. As stated earlier, adhesion is highest at the peaks of the  
surface. Thus, the smoother the finish, the less significant the peaks and the less significant the adhesion. Adhesive wear  
can be reduced with a lower surface finish. Surface finish affects other crimping performance parameters. These are dis-  
cussed in the next section.  
Abrasion can occur depending on terminal surfaces. If a terminal is plated with an abrasive substance, the tooling  
could suffer from abrasive wear. This would be an atypical condition  
and would be handled by special design.  
Other applications where abrasive wear is the primary wear mode involve terminals made of steel and stainless steel.  
Extensive testing has shown chromium plating is the best surface treatment that can be used on crimpers designed for  
these abrasive terminals. However, in these applications, crimpers will not last as long as those crimpers used to crimp  
terminals made of other, less abrasive base materials. Using a lubricant (in those applications where this is acceptable)  
has shown to increase the life of the crimper. However, even when lubricated the crimper life can be expected to be  
shorter when crimping steel or stainless steel terminals.  
Once abrasive wear has taken place to the point where the chromium plating has been removed from the base tool steel  
of the crimper, as successive crimp cycles occur, further wear will happen very quickly. Without the protective  
chromium plating, the underlying surface will then be subject to either further abrasive wear, or adhesive wear. For this  
reason, care should be taken to replace the crimper as soon as wear is visible on the surface of the crimper.  
Surface Condition  
Surface condition can affect the performance of the crimp tooling as well as the longevity of service. As noted in  
the previous section, a hard, smooth surface has improved adhesive wear properties and, thus, longer service life.  
The other attribute that needs to be considered is friction.  
Friction is a contributing factor in determining the final  
crimp form and process characteristics. Low tooling friction  
results in lower crimping force and thus can influence crimp  
form as well as tooling life. Consistent frictional characteris-  
tics between tooling sets will result in reduced process  
variation.  
Friction of the crimp tooling surfaces is influenced by fac-  
tors similar to those that influence adhesive wear—hard-  
ness and surface finish. Generally, harder materials exhibit  
lower coefficients for sliding friction. Friction coefficients  
have also been shown to be related to surface finish. Manu-  
facturing processes need to produce consistent results  
such that when tooling sets need to be changed in produc-  
tion, minimum disruption in crimp quality is achieved. It has  
been found that maintaining surface hardness above Rc 55 as  
Typical Effect of Friction on Crimp Force  
well as keeping surface finishes to 8 micro-inches or less is  
desirable to obtain consistent crimp results and minimize  
adhesive wear.  

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