- The bender
- Twists on the right or on the left
- Volutes in relief
- Rounds, ovals and eggs
- Folding of all kinds
- Fix the foot
- Climb the board
- Refine irons
- Report the dimensions of the twist
- Slide the iron in the center of the board
- Block the stirrup
- Install the twist guide
- Twisted inverted
- Perform scrolls
- Get a spire
- Vary patterns
- Give relief
- Make round shapes
- Connect the ends
- Fold the iron bar
At the cost of a moderate investment - and fairly quickly profitable - in a simple but sophisticated equipment, you can turn into a metalworker. Thus, you will create volutes and twists to make your railings, your gate or your wrought iron gate... cold!
The beauty and elegance of wrought iron works are well established, whether old or new. The major disadvantage is the relatively high cost as soon as we want special reasons and custom. Even for an informed do-it-yourselfer, it's not easy to play blacksmiths overnight. Hot forging requires only a small and fairly simple material (forging, anvil, hammer, tongs and welding equipment). But it presupposes a practice that is not easily acquired.
The cold work is the solution for the amateur wishing to approach the ironwork. Major asset, it can use irons sold in DIY superstores. Among the few devices available on the market, we have chosen a recent model (the "Vulcain" RP2S) that offers many opportunities for the beginner. Sold directly by the company 990e (excluding delivery), it allows to work flat irons of 5x 15 to 8x 20mm or squares of 6, 8 10 or 12mm section. This range is sufficient to produce a large number of books.
It consists of a base surmounted by a tray on which are mounted various accessories. These will make it possible to make, with iron bars, volutes, circles, ovals, twisted or not, to bend them to your exact measurements. The assembly is completed by an arm provided with a roller and pivoting horizontally around the plate. By pushing this lever and placing the appropriate accessory on the device, the user exerts on the iron a pressure which hanger, twist, fold, more or less depending on the number of printed turns. The forces exerted on the irons require a minimum of precautions and preparation.
The base is firmly fixed by four nuts, M10x 80mm, pegged in the ground. To multiply the same pattern, in order to make a guardrail for example, one of the advantages of this device is to keep the settings thanks to end stops of twist, volute and folding, and thus reproduce the same ornament on each bar. For a better profitability of the work and a perfect replica of the reasons, it is however advisable to execute in series all the twists, then the volutes and finally the foldings, for example.
Twists on the right or on the left
This cold forging machine offers the ability to twist irons without the traditional "turn-to-left". They are here replaced by two stirrups integrated in the base, a twisting lever and octagon games. Made of aluminum, the latter include imprints to adopt according to the shape of the irons to work and allow to twists left or right.
If the bar has several types of twists, always start with the tighter ones. Be careful, it is impossible to perform inverted twists on a flat iron. It will inevitably break.
Volutes in relief
To make the volutes, the end of the iron bar is inserted and hangs in the core core previously installed in the center of the plate. The arm to bend, pivoting around the plate, ensures the pressure on the iron bar with a roller.
The core core makes it possible to make the first turn. Three matrices, supplied with the machine, then come to fit behind the heart according to the desired curves. One of the other interests of the system is the possibility of trimming volutes to give relief to your works. For this, install the "crazy" roller and work the bar by having it bear on one of its edges (work diagonally).
Rounds, ovals and eggs
Various templates, supplied with the machine, are placed in the center of the tray to make rounds of 100, 140 or 185mm in diameter, ovals of 100x 120, 140x 200 or 185x 280mm and egg shapes of 140x 170 mm or 185x 230mm.
Folding of all kinds
A corner bender, an anvil, three wheels and a movable jaw are provided to bend bars flat, edge or edge. These accessories are fixed on the tray at defined locations.
Folding takes place via an arm screwed onto the corner bender. On the board, markers indicate the main bending angles.
Fix the foot
Place the base on a stable and solid floor, concrete slab type. After identification, drill 4 ø 16 mm holes to place dowels, preferably metal. Secure the foot with M10 x 80 machine screws.
Climb the board
Mount the tray on the base with the screws and nuts provided. Before performing scrolls, circles or ovals, tighten the heart with a 19 mm wrench to prevent damage to the locking system.
A pattern will always be more beautiful if the work is done on irons whose ends are rounded, beveled, refined... to the grinder. Round irons can also be welded to the ends of the bars.
Report the dimensions of the twist
Put the size of the twist on the bar. Attention, on a flat iron, the operation decreases the length from 5 to 20 cm by meter according to the twists executed. The more you turn, the more tight they are.
Slide the iron in the center of the board
Fit the octagons in the two base stirrups according to the section of the iron. Drag it into the center of the board and octagons. Tighten the bottom stirrup that determines the beginning of the twisting.
Block the stirrup
The stirrup above determines the end of the twist. Slide it into the base until it has been marked. Tighten the pusher nut that locks the caliper to the iron bar.
Install the twist guide
Install the twist guide and its octagon game. The iron is in the alignment of the tray and the base. The twist guide incorporates a tip that indicates the starting point of the twist.
To twist, turn around the machine, a minimum of half a turn, using the extension located in the twist guide. You can always go back if you think it is too tight.
The machine can perform inverted twists. The two stirrups are positioned accordingly, and we turn in the opposite direction. A stop is placed on the plate to indicate the end of the twist.
To perform scrolls, attach the core to the center of the board. Engage the end of the iron in the groove and lock it with the eccentric piece provided so that it can not escape or slip.
Get a spire
Mount on the arm to bend the roller ensuring the pressure on the iron bar. Fit the extension on the arm and turn around the tray to get the first turn, guiding the bar with the other hand.
The core core is used as it is or can be extended by three matrices depending on the desired pattern. They are held in place by lugs engaged in holes provided for this purpose in the tray.
To curve the volutes and give relief to your work, install the "crazy" roller on the arm to bend. Place the iron bar on one of its edges and turn to make the second scroll.
Make round shapes
To make round shapes, install the appropriate template. Block the end of the bar with a profiled stop screwed onto the pan. With the arm to bend and its pebble, make a semicircle first.
Connect the ends
Continue wrapping the bar upward to cross both ends. Mark the overlay for sawing. Connect both ends of the resulting shape with a solder spot.
Fold the iron bar
The iron bar placed in the jaw of the folder and in the jaws of the anvil is held in place by the screwing-unscrewing of the knobs. Folding is done via an arm screwed on the folder.