3M™ Roto Peen Mandrel 7211, 1 ea/Case
| UPC | 00048011037677 |
|---|---|
| 3M ID | 7000046311 |
| Packaging | Case |
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The 3M™ Roto Peen Mandrel is engineered to deliver quick, efficient repair and maintenance to U.S. Army helicopters to components like rotors and rotor hubs in the field, this tool and its associated flap assembly allowed peening action using a die grinder or disc sander. In the early 1970s, the 3M™ Roto Peen Flap Assembly (or TC 330) was qualified and written into military specifications. It soon spread to other aerospace applications.
Used today primarily for aerospace applications, the mandrel comported with a flap assembly allows use of a die grinder or disc sander to perform captive shot peening to repair metal surfaces. The assembly consists of tungsten carbide shot bonded to a flexible polymeric flap gripped by the mandrels attached to the power tool. The spinning flap is held near the surface so that the captive shot hammers the metal surface with each revolution.
Portable, Able to Reach Small Areas and Large Components3M flap/mandrel assemblies provide convenient portability and are especially effective for precision in-service rework, manufacturing, repair of small areas, and peening holes with diameters down to 1/2 inch (12.7mm). Flaps can also be cut with scissors to peen confined areas or peen into areas with a radius down to 1/16 inch (1.6mm) .
Captive shot peening is used for repair or limited access work or when free shot cannot be tolerated. Having the shot used to peen metal surfaces in a captive flap allows for more control and greater access to areas that require this strengthening procedure.
Evolved from the days of blacksmiths hammering swords, peening is a process that utilizes compressive surface stress to strengthen metals, improving resistance to fatigue fracture and stress corrosion cracking. The aerospace industry has stringent peening specifications, in which adherence must frequently be documented. Off-spec peening can result in the failure of parts.
3M also provides Almen gauges to provide precise readings of strip deflections to measure peening intensities. Adopted by the SAE (Society of Automotive Engineers), the Almen Scale of Peen Intensity measures the curvature of a standardized steel strip when peened on one side.
Recommended Applications
MRO in aerospace, military and small shop environments For parts that are too large to fit in a peening cabinet Parts that are subjected to mechanical rework and require rework Landing gear assemblies Wing structures Helicopter rotor hub Jet engine support members Peening after grinding Peening before plating Peening of surfaces subject to stress corrosion Peen straightening Peen forming Weld heat affect zoneBond testing
- Use with Roto Peen Flap Assemblies for die grinders and disc sanders
- Flap/mandrel assembly is portable for added convenience
- Available in three sizes for both small and large surface areas
- For aerospace and other applications in industries with rigorous metal performance standards and specifications
| 3M ID | 7000046311 |
|---|---|
| Part number | 7211 |
| Keywords | rotary tool, Die Grinders, Mandrel |
| Global Product Hierarchy | Tools & Equipment > Mandrels & Adapters |
| Product Type | simple |
| Quantity | 0 |
| Trademark 1 | 3M™ |
| Type | Regular |
| Country of Origin | United States |
| Sales Unit | EA |
| SAP Shelf Life In Days | 1825 |
| Base - Billing Unit | EA |
| Base - Metric Gross Weight | 136.0 G |
| Base - Item Quantity | 1 |
| Base - Unit | EA |
| Unit of Use - Billing Unit | EA |
| Unit of Use - Customary Cubic Dimension | 139.99347290033162 ci |
| Unit of Use - Customary Gross Weight | 0.29982867657143353 lbs |
| Unit of Use - Customary Net Weight | 0.1699984503707591 lbs |
| Unit of Use - Metric Cubic Dimension | 2294.082 CCM |
| Unit of Use - Metric Net Weight | 77.11 G |
| Unit of Use - Item Quantity | 1 |
| Unit of Use - Total Unit Quantity | 1 |
| Unit of Use - Previous Packaging Level Quantity | 1 |
| Unit of Use - Item Unit | EACH |
| Unit of Use - Unit | EA |
| Shipper - Billing Unit | EA |
| Shipper - Customary Cubic Dimension | 139.99347290033162 ci |
| Shipper - Customary Gross Weight | 0.29982867657143353 lbs |
| Shipper - Customary Net Weight | 0.1699984503707591 lbs |
| Shipper - Customary Height Dimension | 4.68503937007874 in |
| Shipper - Customary Length Dimension | 6.377952755905512 in |
| Shipper - Customary Width Dimension | 4.68503937007874 in |
| Shipper - Metric Cubic Dimension | 2294.082 CCM |
| Shipper - Metric Weight | 136.0 G |
| Shipper - Metric Net Weight | 77.11 G |
| Shipper - Metric Height Dimension | 0.119 M |
| Shipper - Metric Length Dimension | 0.162 M |
| Shipper - Metric Width Dimension | 0.119 M |
| Shipper - Item Quantity | 1 |
| Shipper - Total Unit Quantity | 1 |
| Shipper - Previous Packaging Level Quantity | 1 |
| Shipper - Previous Packaging Level Unit | EACH |
| Shipper - Item Unit | EACH |
| Shipper - Unit | CS |
| Pallet - Billing Unit | EA |
| Pallet - Customary Cubic Dimension | 93122.23348856147 ci |
| Pallet - Customary Gross Weight | 202.82528121008738 lbs |
| Pallet - Customary Net Weight | 97.91831374941337 lbs |
| Pallet - Customary Height Dimension | 46.8503937007874 in |
| Pallet - Customary Length Dimension | 47.63779527559055 in |
| Pallet - Customary Width Dimension | 41.732283464566926 in |
| Pallet - Metric Cubic Dimension | 1.526 M3 |
| Pallet - Metric Net Weight | 44.415 KG |
| Pallet - Metric Height Dimension | 1.19 M |
| Pallet - Metric Length Dimension | 1.21 M |
| Pallet - Metric Width Dimension | 1.06 M |
| Pallet - Item Quantity | 576 |
| Pallet - Total Unit Quantity | 576 |
| Pallet - Previous Packaging Level Quantity | 576 |
| Pallet - Previous Packaging Level Unit | BOX |
| Pallet - Item Unit | EACH |
| Pallet - Unit | PAL |
| Pallet - Pallet Layer Quantity | 9 |
| Pallet - Shipping Container Per Layer Quantity | 64 |