Coldwater Machine Co  

911 N 2nd St
Coldwater,  OH  45828-8736

United States
419-678-4877
http://www.coldwatermachine.com
  • Booth: A3251

With over 50 years’ experience, Coldwater Machine Company is a leader in the design, build and integration of specialized equipment and automated solutions for the automotive, aerospace, energy and appliance sectors. These solutions are designed to meet your manufacturing requirements today while providing flexibility and agility to accommodate product changes that reduce future retooling and operating costs. Coldwater has delivered turnkey solutions that include robotics, servo controlled motions, laser welding and ablation, all joining technologies, friction welding, metal forming, bending and piercing. 

Coldwater is also a leader in the development and manufacture of solid state welding solutions that specifically address lightweight and dissimilar materials joining, as well as having experience with traditional MIG and resistance welding technologies. They are also skilled in developing automated weld cells using fiber lasers, CO2 lasers, MIG (GMAW) and friction solutions.

The company’s strength lies in its ability to transfer technology and know-how developed in solving specific challenges for one market to other industries.  


 Press Releases

  • Coldwater Machine Company will be highlighting its SpotMeld™ system at FABTECH 2018 in booth #A3251, focusing on the joining of aluminum sheet materials.  SpotMeld is a Refill Friction Stir Spot Weld (RFSSW) solution that can weld lightweight materials such as aluminum (1000 – 7000 series), magnesium, non-ferrous and dissimilar sheet material. It provides an alternative to single-point joining processes like resistance spot welding, laser welding and riveting without adding additional weight to the structure, and its produces a weld that is near original material strength.

    The SpotMeld system can currently join a stack-up of materials from 0.8 mm to 8 mm, weld dissimilar aluminums in one stack and join multiple sheets across the edge of a panel. In one example, using three sheets of 3.0 mm 6000 series aluminum and one sheet of 1.5 mm 5000 series aluminum.

    Coldwater’s SpotMeld friction stir spot welders can be configured to application specifics and mounted on any industrial robot. A variety of weld recipes can be used on demand by the robot controller, which results in a very flexible production system.

    The SpotMeld Process
    Coldwater’s SpotMeld RFSSW process consists of five phases:

    1.       Weld head closing

    2.       Friction Phase -- Both the pin and sleeve are placed on the surface of upper sheet and rotate to generate sufficient frictional heat for plunging.

    3.       Advance Phase - Sleeve advances into materials and pin retracts, pulling softened material from the metal sheets into the tool.

    4.       Retract Phase -- Sleeve retracts and pin advances flush with sleeve, pushing displaced material back into the hole and forging the finished weld.

    5.       Weld is complete – weld head opens.

    A major advantage of the Coldwater approach is that the tool doesn’t fully penetrate through the bottom sheet, leaving a smooth surface with potential for use on exterior body panels. Other benefits include a small heat affected zone, consistency in weld duplication and faster weld times, as well as being environmentally cleaner and safer with no filler material, spatter, smoke, radiation or shield gasses.

  • Coldwater Machine has announced its ability to design, build and integrate Laser Seam Stepping automated work cells, most recently integrating two IPG Photonic laser seam steppers with FANUC R-2000i/165 robots along with part fixtures and part magazine systems to join stainless steel components for an appliance manufacturer. These systems are also very well suited to automotive body-in-white applications and anywhere there is a need for low heat input and good surface finish.


    “We are always look for ways to help our customers achieve new and effective approaches to manufacturing,” said Coldwater’s Dan Barry, VP of Sales and Marketing. “Adding LSS systems to our capability enables us to offer alternative methods for joining today’s lightweight, high-strength materials.”

     

    Laser Seam Stepping is essentially a laser-based stitch welder that uses special optics to position the laser spot for joining the components. The systems feature integrated clamping technology, and the laser welding takes place inside the pieces being clamped together, providing a Class 1 safety enclosure.  Depending on the application, it is an excellent replacement for resistance spot welding and offers the benefits of fast welding speed, repeatability, high productivity and low heat input. And, given the fact there is no need for complex laser-protected housings, these work cells can easily be used on production lines.


    Coldwater Machine Company has extensive experience integrating laser technology (fiber, CO2, solid state) into its engineered systems to deliver advanced manufacturing solutions. Coldwater develops both custom and standard laser systems for high precision welding, marking, ablation, cutting, hardening and peening. 

     

    To find out more, visit www.coldwatermachine.com or contact Dan Barry at dbarry@coldwatermachine.com.

     

     

  • Coldwater Machine Company will be displaying a showcase of assemblies joined through its SpinMeldTM friction spin welding system at FABTECH 2015 in booth #A3251. These samples illustrate the joining of pins to sheet, of brackets to sheet, of pins to tube, and a variety of other shapes as well as a variety of dissimilar materials joining such as:

    • Powdered Metal - Low Carbon Steel
    • Aluminum - Aluminum
    • Aluminum - Nickel
    • Stainless -  Aluminum
    • Silver - Copper
    • Boron – Aluminum - Carbon

    SpinMeld systems reduce cycle times and defects as compared to traditional welding or joining techniques. Shafts, valve bodies, pistons, brackets and airbag inflators are just some of the components well-suited for SpinMeld production. Coldwater also offers SpinMeld production services for short run and prototype parts.

    SpinMeld systems rely on rotational friction welding principles and a direct drive approach where a spinning workpiece, driven at a constant speed by an electric motor, is joined to a stationary one by rotational friction and externally applied force. It’s an extremely fast process that that produces frictional heat at a sufficient temperature for the materials to reach a plastic state (non-melting or Solid State) at the joint interface. The materials are then forged together by force.

    SpinMeld joining offers numerous benefits, including higher quality joints with high hardness, a very small heat affected area, and no coarse grain formation. The systems are also extremely energy efficient as 95 percent of the mechanical energy is transferred into heat. SpinMeld is also environmentally friendly, eliminating the need for filler metals, fluxes or shielding gases.

    The SpinMeld systems are available as stand-alone vertical or horizontal machines that can be integrated into a work cell or an automated processing line.  Each system is designed to fit the individual application with machine parameters such as rotational speeds, cycle times, and forging forces based on the material composition, part configuration and contact surface area of each joint. Rotational speeds are available from 2,000 to 23,000 rpm and forging forces from 335 to 12,000 lbf. The systems can be designed with a maximum weld area of 0.992 in2 (640 mm2).

    Production quality samples for evaluation and testing using your work pieces can be created within our joining center to prove process feasibility. 

    For more information on Coldwater Machine’s Friction Welding solutions, visit www.coldwatermachine.com/spin-friction-welding

    ###

  • Coldwater Machine Company, a leading engineering solutions company that manufactures and integrates assembly automation and special machines, has announced its laser ablation system design and build capability. Based on Coldwater Machine standards that are adapted for specific requirements, the systems can be designed to stand-alone or for integration into any manufacturing process that requires cleaning of parts prior to another operation.

    Laser ablation can serve as a good alternative to traditional surface finishing solutions. As compared to grinding, lasers create a cleaner, smoother surface by eliminating burrs and nicks without increasing surface roughness. And, compared to fluid washers laser ablations stations typically have a significantly smaller footprint, require fewer components and are easier to maintain.

    In Coldwater’s most recent application, the company integrated a 3-ft x 3-ft. laser ablation station around existing automation within a laser welding cell.  In this instance, the components for cleaning travel on a conveyor into a Class 1 laser enclosure with glass specifically tinted for viewing of laser processes. The door then comes down to enclose the part and shield the light emitted from the 100W laser. Situated on a servo-driven powered slide unit, the part is raised up and rotated 360-degrees to ensure that any dust, oil, coolant, debris, etc. is removed from all sides.

    In addition to ablation systems, Coldwater Machine has experience in incorporating laser technology into solutions for welding, cutting, marking and peening.  For more information on its laser systems, visit www.coldwatermachine.com/laser-systems or call 419-678-4877.


    END


 Products

  • Laser Seam Stepper Robotic Workcell
    Coldwater machine can design, build and integrate Laser Seam Stepping automated work cells integrating IPG Photonic laser seam steppers with robots, part fixtures and part magazine systems for joining steel components for appliance, automotive and more....
     

  • Coldwater Machine has announced its ability to design, build and integrate Laser Seam Stepping automated work cells, most recently integrating two IPG Photonic laser seam steppers with FANUC R-2000i/165 robots along with part fixtures and part magazine systems to join stainless steel components for an appliance manufacturer. These systems are also very well suited to automotive body-in-white applications and anywhere there is a need for low heat input and good surface finish.


    “We are always look for ways to help our customers achieve new and effective approaches to manufacturing,” said Coldwater’s Dan Barry, VP of Sales and Marketing. “Adding LSS systems to our capability enables us to offer alternative methods for joining today’s lightweight, high-strength materials.”

     

    Laser Seam Stepping is essentially a laser-based stitch welder that uses special optics to position the laser spot for joining the components. The systems feature integrated clamping technology, and the laser welding takes place inside the pieces being clamped together, providing a Class 1 safety enclosure.  Depending on the application, it is an excellent replacement for resistance spot welding and offers the benefits of fast welding speed, repeatability, high productivity and low heat input. And, given the fact there is no need for complex laser-protected housings, these work cells can easily be used on production lines.


    Coldwater Machine Company has extensive experience integrating laser technology (fiber, CO2, solid state) into its engineered systems to deliver advanced manufacturing solutions. Coldwater develops both custom and standard laser systems for high precision welding, marking, ablation, cutting, hardening and peening. 

     

    To find out more, visit www.coldwatermachine.com or contact Dan Barry at dbarry@coldwatermachine.com.

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