2,315
edits
Changes
→Weld Buttons
*Typical Contact Shapes of Solid Contact Rivets (<xr id="fig:Typical_Contact_Shapes_of_Solid_Contact_Rivets"/>)
*Contact Materials <br /> Au-, AgPd-, PdCu-Alloys, Ag, AgNi 0,15 (ARGODUR-Spezial), AgCu, AgCuNi (ARGODUR 27), Ag/Ni (SINIDUR), Ag/CdO (DODURIT CdO), Ag/SnO<sub>2</sub> SISTADOX), Ag/ZnO (DODURIT ZnO),Ag/C 97/3*, Cu<br /> <span class="small"><sup>*</sup> dimensionally very limited</span>
*Dimensional Ranges (<xr id="fig:Dimensional_Ranges"/>) <br /> The respective parameters cannot be chosen independently of each other. They mainly depend on the ductility of the required contact material. Before a final decision on the dimensions we recommend to consult with the contact manufacturer. <br />
*Qualitätsmerkmale und Toleranzen Quality criteria and tolerances (<xr id="fig:Qualitaetsmerkmale_und_Toleranzen"/>)
<div class="multiple-images">
<figure id="fig:Typical_Contact_Shapes_of_Solid_Contact_Rivets">
</figure>
<figure id="fig:Qualitaetsmerkmale_und_Toleranzen">
[[File:Qualitaetsmerkmale und Toleranzen.jpg|left|thumb|Figure 3: Qualitaetsmerkmale und ToleranzenQuality criteria and tolerances]]
</figure>
</div>
*Typical contact shapes for composite rivets (<xr id="fig:Typical_contact_shapes_for_composite_rivets"/>)
*Contact materials <br /> Ag, AgNi 0,15 (ARGODUR), AgCu, AgCuNi (ARGODUR 27), Ag/Ni (SINIDUR), Ag/CdO (DODURIT CDO), Ag/SnO<sub>2</sub> (SISTADOX), Ag/ZnO (DODURIT ZNO)<br />
*Base materials <br /> Cu <br />
<tr><th><p class="s13">Criteria</p></th><th><p class="s13">Form B Form C</p><p class="s13">Trapezoidal head, Trapezoidal head radiused flat</p></th><th><p class="s13">Suggested test</p><p class="s13">equipment</p></th></tr><tr><td><p class="s13">a) Head diameter</p><p class="s13">d<span class="s14"><sub>1 </sub> </span>[mm]</p></td><td><p class="s13">During optical measurement disregard corner radius R<span class="s14"><sub>3</sub> </span><u>+</u> 0.1</p></td><td><p class="s13">Comparator, measu-</p><p class="s13">ring microscpope</p></td></tr><tr><td><p class="s13">b) Head thickness</p><p class="s13">k [mm]</p></td><td><p class="s13">+ 0.1</p></td><td><p class="s13">Micrometer,</p><p class="s13">Dial indicator</p></td></tr><tr><td><p class="s13">c) Shank diameter</p><p class="s13">d<span class="s14"><sub>2</sub> </span>[mm]</p></td><td><p class="s13">Deviation from roundness and conical shape of</p><p class="s13">shank only within allowed diameter tolerance d<span class="s14"><sub>2</sub> </span> <u><</u> 1.5 - 0.08</p><p class="s13">d<span class="s14"><sub>2</sub> </span>> 1.5 - 0.1</p></td><td><p class="s13">Micrometer</p></td></tr><tr><td><p class="s13">d) Shank length l</p><p class="s13">[mm]</p></td><td><p class="s13">+ 0.15</p></td><td><p class="s13">Micrometer, Dial indicator, Comparator</p></td></tr><tr><td><p class="s13">e) Radius at center</p><p class="s13">of contact surface</p><p class="s13">R<span class="s14"><sub>1</sub> </span>[mm]</p></td><td><p class="s13">Form B: <u>+</u> 10%, but not below</p><p class="s15">+<span class="s13"> 0.5 mm</span></p><p class="s13">Form C: Allowable deviation from flatness: convex: within head thickness tolerance concave: 0.005 d<span class="s14">1</span></p></td><td><p class="s13">Comparator, Comparator template, Radius gage, Profile template</p></td></tr><tr><td><p class="s13">f) Radius at edge</p><p class="s13">of contact surface</p><p class="s13">R<span class="s14"><sub>2</sub> </span>[mm]</p></td><td><p class="s13">per DIN 46240: Form B and C max. 0.5 without DIN:max. 1</p></td><td><p class="s13">Profile template,</p><p class="s13">Comparator, Radius gage</p></td></tr><tr><td><p class="s13">g) Radii</p><p class="s13">R<span class="s14"><sub>3</sub> </span>and R<span class="s14"><sub>5</sub> </span>[mm]</p></td><td><p class="s13">Sligth rounding allowed</p></td><td><p class="s13">Comparator</p></td></tr><tr><td><p class="s13">h) Transition radius</p><p class="s13">head underside to shank R<span class="s14"><sub>4</sub> </span>[mm]</p></td><td><p class="s13">d<span class="s14"><sub>2</sub> </span><u><</u> 2 R<span class="s14"><sub>4</sub> </span><u><</u> 0.08 d<span class="s14"><sub>2</sub> </span>> 2 R<span class="s14"><sub>4</sub> </span><u><</u> 0.1 d<span class="s14"><sub>2</sub> </span>> 3 R<span class="s14"><sub>4</sub> </span><u><</u> 0.2</p></td><td><p class="s13">Comparator, if in doubt: micro-section</p></td></tr><tr><td><p class="s13">i) Allowed deviation from cylindrical shape</p></td><td><p class="s13">d<span class="s14"><sub>1</sub> </span> <u><</u> 4 up to 7°30’ + 2°30’</p><p class="s13">d<span class="s14"><sub>1</sub> </span>> 4 up to 10° + 5°</p></td><td><p class="s13">Comparator, Measu- ring microscope, if in doubt: microsection</p></td></tr><tr><td><p class="s13">k) Concentricity bet-</p><p class="s13">ween head and shank center line [mm]</p></td><td><p class="s13">5% of d<span class="s14"><sub>1</sub></span></p></td><td><p class="s13">Comparator,</p><p class="s13">Measuring microscope, Special turn fixture</p></td></tr><tr><td><p class="s13">l) Contact layer</p><p class="s13">thickness [mm]</p></td><td><p class="s13">In center area of 0.5 d<span class="s14"><sub>1</sub> </span>s<u>></u> nominal thickness</p><p class="s13">Remaining head area must be covered</p></td><td><p class="s13">Measuring micros- cope, Microsection</p></td></tr></table>
*Typical contact shapes of tri-metal rivets (<xr id="fig:Typical_contact_shapes_of_tri-metal_rivets"/>)<figure id="fig:Typical_contact_shapes_of_tri-metal_rivets">[[File:Typical_contact_shapes_of_tri-metal_rivets.jpg|right|thumb|Figure 9: Typical contact shapes of tri-metal rivets]]</figure>*Contact materials <br /> Ag, AgNi 0,15 (ARGODUR), AgCu, AgCuNi (ARGODUR 27), Ag/Ni (SINIDUR), Ag/CdO (DODURIT CDO), Ag/SnO (SISTADOX)<sub>2</sub> , Ag/ZnO (DODURIT ZNO)<br />
*Base materials <br /> Cu <br />
*Dimensional ranges (<xr id="fig:Dimensional_ranges2"/>) <div class="multiple-images"><figure id="fig:Typical_contact_shapes_of_tri-metal_rivets">[[File:Typical_contact_shapes_of_tri-metal_rivets.jpg|left|thumb|Figure 9: Typical contact shapes of tri-metal rivets]]</figure>
<figure id="fig:Dimensional_ranges2">
[[File:Dimensional_ranges2.jpg|right|thumb|Figure 10: Dimensional ranges]]
</figure>
===Standard values for rivet dimension===
<table class="twocolortable" style="width:75%">
<tr><th>d<sub>1</sub></th><th><p class="s13">k</p></th><th><p class="s13">1</p></th><th><p class="s13">d<sub>2</sub></p></th><th><p class="s13">α</p></th><th><p class="s13">r<sub>1</sub></p></th><th><p class="s13">s<sub>1</sub></p></th><th><p class="s13">s<sub>2</sub></p></th></tr><tr><td><p class="s13">3.0</p></td><td><p class="s13">0.8</p></td><td><p class="s13">2.0</p></td><td><p class="s13">1.5</p></td><td><p class="s13">7.5°</p></td><td><p class="s13">4.0</p></td><td><p class="s13">0.4</p></td><td><p class="s13">1.0</p></td></tr><tr><td><p class="s13">4.0</p></td><td><p class="s13">1.0</p></td><td><p class="s13">2.5</p></td><td><p class="s13">2.0</p></td><td><p class="s13">7.5°</p></td><td><p class="s13">8.0</p></td><td><p class="s13">0.5</p></td><td><p class="s13">1.2</p></td></tr><tr><td><p class="s13">5.0</p></td><td><p class="s13">1.2</p></td><td><p class="s13">3.0</p></td><td><p class="s13">2.5</p></td><td><p class="s13">10°</p></td><td><p class="s13">12.0</p></td><td><p class="s13">0.6</p></td><td><p class="s13">1.4</p></td></tr></table>
Press–sinter processes are limited to smaller Ag/W contact tips, with a Ag content of approximately 65 wt%.
*Contact materials <br /> Ag, AgNi 0,15 (ARGODUR Spezial), AgCu, AgCuNi (ARGODUR 27), Ag/Ni (SINIDUR), Ag/CdO (DODURIT CdO), Ag/SnO<sub>2</sub> (SISTADOX), Ag/ZnO (DODURIT ZnO), Ag/C (GRAPHOR), Ag/W (SIWODUR), Ag/WC (SIWODUR C), Ag/WC/C (SIWODUR C/C), Ag/Mo (SILMODUR), Cu/W (CUWODUR)<br />
*Typical contact shapes of tips and formed contact parts (<xr id="fig:Typical_contact_shapes_of_tips_and_formed_contact_parts"/>)
<figure id="fig:Typical_contact_shapes_of_tips_and_formed_contact_parts">
[[File:Typical_contact_shapes_of_tips_and_formed_contact_parts.jpg|rightleft|thumb|Figure 11: Typical contact shapes of tips and formed contact parts]]
</figure>
<br style="clear:both;"/>
*Dimensional ranges<br />Attachment Method: Welding <br />Bonding Area: approx. 5 – 25 mm<sup>2</sup><br />Attachment Method: Brazing <br />Bonding Area: > 25 mm<sup>2</sup> <br />
The manufacturing of weld buttons from bi– or tri–metal strip requires a ductile contact material. Weld buttons with tungsten contact layers are therefore produced by brazing of tungsten discs to a weldable pre-formed base.
*Typical contact forms of weld buttons (<xr id="fig:Typical_contact_forms_of_weld_buttons"/>)<figure id="fig:Typical_contact_forms_of_weld_buttons">[[File:Typical_contact_forms_of_weld_buttons.jpg|right|thumb|Typical contact forms of weld buttons]]</figure>*Contact materials <br /> Ag, AgNi 0,15 (ARGODUR-Spezial), AgCu, AgCuNi (ARGODUR 27), Ag/Ni (SINIDUR), Ag/CdO (DODURIT CdO), Ag/SnO<sub>2</sub> (SISTADOX), Ag/ZnO (DODURIT ZnO) <br />
*Carrier materials <br />Ni, Fe, CuNi, CuNiZn et.al.<br />
*Dimensional Ranges (<xr id="fig:13neuDimensional -Ranges"/>) *Quality criteria of standard weld buttons (<xr id="fig:16Quality_criteria_-of_standard_weld_-buttonsneu"/>)<div class="multiple-images"><figure id="fig:Typical_contact_forms_of_weld_buttons">[[File:Typical_contact_forms_of_weld_buttons.jpg|left|thumb|Figure 12: Typical contact forms of weld buttons]]</figure>
<figure id="fig:13neuDimensional -Ranges">
[[File:13neuDimensional -Ranges.jpg|rightleft|thumb|Figure 13: Dimensional Ranges]]
</figure>
<figure id="fig:16Quality_criteria_-of_standard_weld_-buttonsneu">
[[File:16Quality_criteria_-of_standard_weld_-buttonsneu.jpg|rightleft|thumb|Figure 14: Quality criteria of standard weld buttons]]
</figure>
</div>
<div class="clear"></div>
==References==
