Fiber laser cutting machine laser cuts vacuum pump diaphragms with good quality and high efficiency

Plastic or rubber diaphragms are very important components in vacuum pumps. Because the diaphragm must form a tight seal between the inner and outer chambers of the pump to complete the efficient pumping process. The edges of the diaphragm must be flat and polished, and cannot be rough or uneven. The fiber laser cutting process can meet the requirements of these material applications, providing high-quality cut edges, improving product consistency, and reducing the edge damage that may be caused by mechanical cutting of the diaphragm. Fiber laser cutting machine laser cutting diaphragms can provide good cut edge quality while reducing the risk of damage caused by mechanical cutting. For this application, a central mounting hole was required to be cut in a 1mm (0.039") thick diaphragm made of layered neoprene and polytetrafluoroethylene (Teflon®). The hole diameter is 22.9mm (0.9"). The cutting process uses a Synrad 80 W laser mounted on an XY stage, equipped with a cutting head with a 2.5" focal length lens, which can provide a focused spot of 0.1mm (0.004"). CDA (clean dry air) is used as the auxiliary gas, sprayed through a 0.9mm (0.0345") wide nozzle at a flow rate of 100 PSI to reduce the damage of the molten material to the lens. In this way, we can complete the cutting at a cutting speed of 74mm/s (175inches/min). The final cut edge is very smooth and the amount of melting is very small. The 0.9" diameter center hole on the diaphragm is cut by a laser with a power of 80W and a speed of 74 mm/s (175 IPM).

Plastic or rubber diaphragms are very important components in vacuum pumps. Because the diaphragm must form a closed seal between the inner and outer cavities of the pump to complete the efficient pumping process. The edge of the diaphragm must be smooth and polished, not rough or uneven. The laser cutting process of the fiber laser cutting machine can meet the requirements of these material applications, providing high-quality cut edges, improving product consistency, and reducing the edge damage that may be caused by mechanical cutting of the diaphragm.

Laser cutting of diaphragms with a fiber laser provides good edge quality while reducing the risk of damage from mechanical cutting.

For this application, a central mounting hole was required to be cut into a 1mm (0.039") thick diaphragm made of layered neoprene and polytetrafluoroethylene (Teflon®). The hole diameter was 22.9mm (0.9").

The fiber laser cutting process used a Synrad 80W laser mounted on an XY stage and equipped with a cutting head with a 2.5" focal length lens, which provides a focused spot of 0.1mm (0.004"). CDA (clean dry air) was used as the auxiliary gas, sprayed through a 0.9mm (0.0345") wide nozzle at a flow rate of 100 PSI to reduce the damage of the molten material to the lens. This allowed us to complete the cutting at a cutting speed of 74mm/s (175inches/min). The final cut edge was very smooth and the amount of melting was very small.

The 0.9" diameter center hole on the diaphragm was cut using a laser with a power of 80W and a speed of 74 mm/s (175 IPM).