Here is something I gleaned off of the internet at this website:
http://www.ospreypublishing.com/content2.php/cid=217Indeed the eminent archaeologist Anthony Snodgrass stated in his book Arms and Armour of the Greeks, which first appeared in 1967 but is still the principal comprehensive work on the subject, that 'Chalcis became the outstanding centre of production of iron swords in Greece, as Toledo did of steel in medieval Europe'.
The sword with leaf-shaped blade could be used for both cut and thrust, but it is clear from the representational evidence that it was principally used in a downward cut. In fact we have few detailed clues as to how it was used. An interesting vase in the British Museum depicts a duel between Achilles and Hektor. Achilles on the left is still fighting with his spear, but Hektor has lost his, and is about to launch a violent attack with his drawn sword, which is of the standard type with its leaf-shaped blade. He has thrown the sword backwards in his right hand, and is about to rush on Achilles. As he runs in he will swing the sword forwards and upwards, and then up over the right shoulder, flexing his elbow and holding his chest and shoulders as high up as possible, in order to bring it down in front of him with the maximum force. Interestingly, and presumably by mistake, the artist has given Hektor a second sword housed in his scabbard.
The swelling of the blade, both in width and thickness, towards the point, which gives it its distinctive leaf shape, is presumably designed to move the centre of gravity of the blade forwards towards the point, and as far away from the hand as possible, to maximise the force of the downward blow. The emphasis was placed on the downward cut, and so we also find the Greeks making use of two types of curved and single-bladed swords designed to maximise the force of the blow.
The first type is best described as a recurved sabre. Shaped like a Gurkha kukri or a yataghan [a muslim long curved knife], the back of the blade curves forward, and the main weight of the weapon lies near the tip. The cutting edge is on the concave side. The hilt sometimes ends in the shape of a bird or animal head, or curves back to guard the knuckles in the shape of a 'knuckle-duster'. The weapon is often shown being used in a backhand cut. A good example of this is a vase in Bologna that shows an Amazon hoplite swinging a recurved sabre back over her left shoulder. She is about to deliver a diagonal slashing stroke to her front and right with it. Recurved sabres are very common in Iberia, but all these examples seem to be later in date, and it is possible they represent a later spread in the use of the weapon out of the Greek world to the west.
Finally the Greeks also used a third type of sword, not previously distinguished from the recurved sabre by Greek archaeologists, which, in comparison with the standard terminology used for medieval weaponry, we might best term a 'falchion'. Other suitable terms might be 'backsword' or 'pallasch'. It also had a heavy single-edged blade, whose back was either straight or slightly concave, but not recurved like the sabre described above, while the edge has a pronounced convex curve and broadens considerably towards the point. Like the recurved sabre the falchion also came into use in the later 6th century. The falchion is only shown on a limited number of vase paintings, and its popularity does not seem to have survived long into the 5th century.
Recurved sabres and falchions are both shown being used by Achaemenid troops on Greek vases.
Cheers,
Karsk