Aerospace Structure

TORSION LINK - LANDING GEAR


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<h2 class="wp-block-heading">Notes</h2>



<ul class="wp-block-list"><li>Cuts were very quiet &#8211; no vibration</li><li>Cycle time = 64 min, 39% decrease comparing to previous solution</li><li>Same tool also has to do some full slotting on the parts</li><li>The tool is indexed at 90 min of cut time</li><li>Most wear was observed on row 2 and 4</li><li>Slotting along the slope</li></ul>



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<h3 class="wp-block-heading">Solution Specifications</h3>



<figure class="wp-block-table"><table><tbody><tr><td><strong>Material</strong></td><td>5553 Titanium (forged)</td></tr><tr><td><strong>Tool Description</strong></td><td>Kennametal HU8X D2.0&#8243; BTF46 ZU4 AP4.22&#8243;</td></tr><tr><td><strong>Kennametal MM#</strong></td><td><a href="https://www.kennametal.com/us/en/products/p.harvi-ultra-8x-helical-mill-ic-10-lead-row-only-taper-flange-mount.6523597.html?cid=KMT_ACQ_PSL_PD_AFF_TXT_v1_ti-acd_NA_1046" target="_blank" rel="noreferrer noopener">MM 6523597</a></td></tr><tr><td><strong>Operation</strong></td><td>Roughing</td></tr><tr><td><strong>Cutting Edge</strong></td><td>Carbide</td></tr><tr><td><strong>Insert</strong></td><td><a href="https://www.kennametal.com/us/en/products/p.harvi-ultra-8x-nbspinserts-ic10-snhj10-gdh.6412504.html?cid=KMT_ACQ_PSL_PD_AFF_TXT_v1_ti-acd_NA_1046" target="_blank" rel="noreferrer noopener">Kennametal SNHJ332SNGDH KCSM40</a></td></tr><tr><td><strong>Vc</strong></td><td>29 m/min (95 SFM) </td></tr><tr><td><strong>Fz</strong></td><td>0,053 mm/z (.0021 in)</td></tr><tr><td><strong>Ap</strong></td><td>63,5 mm (2.5 in)</td></tr><tr><td><strong>Ae</strong></td><td>12,7 mm (.5 in)</td></tr><tr><td><strong>Power / Torque</strong></td><td>4,0 kW / 200 N.m</td></tr><tr><td><strong>MRR</strong></td><td>98,3 cm³/min (6.0 in³/min)</td></tr><tr><td><strong>Coolant supply</strong></td><td>Internal Coolant</td></tr><tr><td><strong>Objective</strong></td><td>Cycle time reduction / reliability</td></tr><tr><td><strong>Tool Life</strong></td><td>~ 90 min</td></tr></tbody></table></figure>
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Torsion Link / Landing Gear Part: Milling

Slotting

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Solution Specifications

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Material	5553 Titanium (forged)
Tool Description	Kennametal HU8X D2.0″ BTF46 ZU4 AP4.22″
Kennametal MM#	MM 6523597
Operation	Roughing
Cutting Edge	Carbide
Insert	Kennametal SNHJ332SNGDH KCSM40
Vc	29 m/min (95 SFM)
Fz	0,053 mm/z (.0021 in)
Ap	63,5 mm (2.5 in)
Ae	12,7 mm (.5 in)
Power / Torque	4,0 kW / 200 N.m
MRR	98,3 cm³/min (6.0 in³/min)
Coolant supply	Internal Coolant
Objective	Cycle time reduction / reliability
Tool Life	~ 90 min