How it's made PVF - Paddle Blind

Paddle blind video
Long Beach manufacturer Phillips Steel among other work makes Paddle blinds This particular project will be done on a machine, which cuts through A516 grade 70 steel in just seconds.
The Purchase order with the information needed to start the project is then used to make computer aided design or the cad drawings for the spec blinds. The machinist has attended schooling and been certified on CAD software, and with 15 years of experience he is able to easily put together the design for the High-definition plasma machine to make exact cuts.
Upon finishing the design he saves it on the computer and on a zip drive to take the information to the HD plasma machine
Video (at machine computer) After downloading the drawings and couple of minutes of set up while double checking the settings & Parameters the machine is ready to go
1:06 - The plate that will be used has been brought in with a forklift. This ASTM A516 Grade 70 steel plate grade is a medium carbon alloy, that also contains amounts of manganese, phosphorus, sulfur, and silicon. A516 is primarily used for service in welded pressure vessels where improved notch toughness is required. The plate dimensions are 96 inches by 240 inches wide…one quarter inch thick and weighs about 1700 pounds.
Before cutting, the machine does a dry run, you can see the track of the cut by watching the red dot. This red dot gives the machinist another chance to make sure that the cut taking place will be in the spot of the plate it needs to be at. If it is too far away or too close to the edge, the machinist will easily be able to see it and make adjustments to reduce scrap
after the dry run the HD plasma machine is ready to roll. After an immediate puff of smoke, the machine quickly and easily works its way through the plate. The blast of heat from the plasma machine can get up to 40 thousand degrees Fahrenheit. Following the exact track that was outlined by the machine operator through his CAD drawings, it’s just a simple push the button for this section of the project.
After the first one is done the machine will just repeat itself per the direction of the CAD drawings. Not only does the machine know the exact specifications of the paddle blind, but also what positioning on the plate will be best needed to get the most paddle blinds while leaving the smallest excess waste.
this plasma machine runs off propylene & oxygen tank that when combined make the machine work best
from a more aerial view you can see again how precise the machine is and how it accesses the best possible positioning of the cuts to get the most out of the metal.
the areal view you can see the start position of the cut which looks almost like a bullet hole which is about a half inch off the actual cut. This pierce point is to make sure the starting point doesn’t damage the actual blind that will be going into use.
after a couple minutes to make sure the metal has cooled; the machine operator uses a large magnet with a handle to pull the blinds out of the metal. Because of the small cut and the weight of the metal this technique makes it very easy to extract the blinds. These blinds weigh about three pounds, so it is very easy to move around with the magnet.
once the blinds are extracted from the plate, they are moved to another section for the machine shop to prepare for the next step.
the blinds are then brought to this table to be laid out so they can each be individually worked on.
the machinist takes out a deburring tool to clean the edges, making sure any burs or sharp edges will be removed. Even though most people will be working with these will be wearing gloves, they still need to be finished off correctly and be smooth to the touch
The machinist spends time doing this, but because of the exact cut and style of cut that comes from the plasma machine it is not as time consuming as when these same paddles would have been produced in the past.
after they are cleaned up, they are laid out for the next step of the proces they will be stampedThe stamping will be done with a hand stamp kit, these metal pieces made from a hardened steel have numbers, letters, and other markings that would be needed for the blinds.after the pieces have been put in place the machine operator hammers them into the handle section of the blinds.
the stamping kit will be used for a few reasons. First, they need to be marked with the size and pressure rating of the item. For this blind it lets the user know that it is a 6-inch 150-pound paddle blind.
after changing out the numbers and putting the new numbers in, the machine operator goes back to work for the final step.
after a swing by the 3-pound club hammer, the final markings which include the grade of steel are put on the handle. These markings will show the user what type of material was used to make the item.
at this point the paddle bind is done and ready for a Master Distributor or supply house ready for quick turnaround for an end user.

Видео How it's made PVF - Paddle Blind канала IV University