Additive manufacturing makes it possible to move from 3D model data sets to the production of functional component layers in the future.
Additive manufacturing can directly produce 3D modeling into finished products at low cost, which can produce single products or batch products. Additive manufacturing can integrate functions directly into components, and can quickly manufacture complex geometries. Compared with 3D printing, additive manufacturing is more suitable for industrial applications. For example, in the plastics industry, the production and proofing of individual products, the manufacture of small batch products, products with a short life cycle or personalized products will have a large demand market.
In additive manufacturing equipment, in order to ensure that the size of the material particles is sufficiently accurate and consistent, as well as to complete the manufacturing quickly and improve the processing efficiency, the integrated piezo ceramic actuator is a superior choice.
Coremorrow's Piezo Ceramic Actuator
The millisecond-level rapid vibration of the piezo ceramic actuator of CoreMorrow can make the material particles quickly discharged in the form of liquid droplets, and the high precision of the piezo ceramic actuator ensures the high consistency of the material particles.
The additive manufacturing technology of this integrated piezo actuator will not be affected by the material process.
CoreMorrow's piezo ceramic actuator not only has the characteristics of nanometer-level high precision and millisecond response time, but more importantly, it has high dynamics and can perform reciprocating motion at high frequencies. This motion can realize the discharge of material particles. Open and close, this high-dynamic, high-precision piezo droplet ejection technology is very suitable for additive manufacturing!
CoreMorrow produces a wide range of piezo ceramic actuators, with more than one hundred models, and the range of movement ranges from 7μm to 260μm. Depending on the movement displacement and load, its working frequency ranges from a few Hz to kHz.
CoreMorrow encapsulated piezo ceramic actuators can be divided into open loop (no positioning feedback sensor) and closed loop (integrated positioning feedback sensor) versions. Under open loop, its resolution is infinitely high, only limited by the noise of the control device, but due to the hysteresis and creep characteristics of piezo ceramics, its repeatability and stability are low. For static use, a closed-loop version can be selected, which can solve the problem of hysteresis and creep. For high dynamic applications, it will not be affected by the hysteresis and creep characteristics of piezo ceramics, and the open-loop version can be used. Therefore, for additive manufacturing, CoreMorrow’s open-loop piezo actuator is better.
Open and closed loop displacement curve
Dynamic curve of open-loop piezo ceramic actuator 20μm, 160Hz
CoreMorrow's piezo ceramic actuator adopts a direct drive structure. In appearance, the longer the length, the greater the displacement; the larger the diameter, the higher the output. This is also the universal feature of piezo ceramic actuators of similar direct drive structure.
The larger the outer diameter, the greater the output; the higher the height, the greater the displacement
The metal mechanical shell encapsulated in the outer layer of the piezo ceramic actuator has a good protective effect on the piezo ceramic inside, and can effectively avoid accidental collisions with the piezo ceramic. However, piezo ceramic actuators are still products that are afraid of falling, humid, and pressure, and they need to be cautious in operation.