The phrase "are hammered with" is correct and usable in written English.
It can be used to describe a situation where someone is overwhelmed or inundated with something, such as tasks or information.
Example: "During the final exam period, students are hammered with assignments and study materials."
Alternatives: "are overwhelmed by" or "are inundated with".
Cars brought in from other countries are hammered with a 200%-plus import tax, motorised vehicles require the purchase of annual licences, and the price of fuel has been rising fast, with recent increases met with public strikes and violence.
Instead you are hammered with one cliché after another, from the architecture of Asgard, with its floating stone staircases and vast, vaulted chambers, to the computer-generated monsters.
Just think, for example, of the way you ordinarily encounter a hammer when you are hammering with it, or a pen while you are writing with it, a bike while riding it, a car while driving it, or even, say, a freeway interchange as you drive over it for the umpteenth time.
The point is hammered with vigor by primary-averse enthusiasts of Ms. Gillibrand.
Italian bonds are also being hammered, with the yield on the 10-year at 6.42%.
"They've showed no signs of capitulating, so they've been hammered with airstrikes".
For two hours the audience had been hammered with non-stop folksy entertainment.
"The N.Y.P.L. board must be hammered with tales of their irresponsibility".
The Titans were not in a good place before two internationals and their reigning best and fairest – along with two others – were hammered with various drugs charges.
In a heroic late-game display, he scored 7 points and made a steal after being hammered with a vicious elbow by Ray Allen with two minutes to play.
But the tiger's roar turned to a whimper as the economy was hammered, with Ireland overdependent on housing and financial services.
