Обжиг идёт в печи для обжига.

In Russian, идти often has a broader meaning than physical walking or going. It can also mean:

• to be happening
• to be in progress
• to proceed

So Обжиг идёт means something like:

• The firing is underway
• The firing process is going on

This is a very common extension of идти in Russian. Compare:

• Фильм идёт. — The film is showing.
• Дождь идёт. — It is raining.
• Работа идёт хорошо. — The work is going well.

So in this sentence, идёт is perfectly natural and not about movement.

Обжиг is a noun meaning firing, calcination, or heat treatment by burning/baking, depending on context. It is used especially for industrial or craft processes such as:

• firing ceramics
• firing clay
• roasting/calcining materials

So here обжиг is the process itself, not a person doing something.

This noun comes from the verb обжигать / обжечь.

They are forms of related words, but they are doing different jobs in the sentence.

• Обжиг = a noun in the nominative case, the subject:

  • Обжиг идёт = The firing is underway

• обжига = the genitive singular form of the noun обжиг, used after для:

  • печь для обжига = a kiln/furnace for firing

So the repetition is not a mistake. Russian often does this when one noun names the process and another phrase describes the purpose of an object.

Literally:

• Обжиг идёт — Firing is taking place
• в печи для обжига — in a kiln for firing

Because this sentence expresses location, not direction.

• в + accusative usually means into somewhere, showing motion toward a destination:

  • в печь = into the furnace/kiln

• в + prepositional usually means in or inside somewhere, showing location:

  • в печи = in the furnace/kiln

Since the firing is happening inside the kiln, Russian uses the prepositional case:

• печь → в печи

Печи here is the prepositional singular of печь.

The noun печь is feminine and has a soft-sign ending. Its singular forms include:

• nominative: печь
• genitive: печи
• dative: печи
• prepositional: печи

So after в meaning in, we need the prepositional:

• в печи — in the kiln / in the furnace / in the oven

This form happens to look the same as the genitive and dative singular, which is very common in Russian.

Для means for, and it requires the genitive case.

So:

• для
  • genitive = for the purpose of ...

Here:

• base noun: обжиг
• genitive singular: обжига

So:

• печь для обжига = a kiln/furnace for firing

This structure is very common in Russian for expressing purpose:

• машина для резки — machine for cutting
• инструмент для работы — tool for work
• ёмкость для воды — container for water

Because печь can mean different kinds of ovens, furnaces, or stoves depending on context. Adding для обжига makes the purpose more specific:

• печь = oven / furnace / kiln / stove
• печь для обжига = a furnace/kiln used for firing

So the fuller phrase helps clarify that this is not just any oven or stove, but one specifically designed for the firing process.

In technical or industrial Russian, this kind of precision is very common.

It depends on context.

The Russian word печь is broad and can refer to:

• a stove
• an oven
• a furnace
• sometimes a kiln

In this sentence, because the topic is обжиг (firing), the best English translation is often kiln or furnace, depending on the industry.

So:

• in ceramics, печь для обжига is often best translated as kiln
• in an industrial setting, it may be furnace

Russian uses one broader word where English often chooses a more specialized term.

Yes. Russian word order is flexible, although not completely free.

The neutral order here is:

• Обжиг идёт в печи для обжига.

But other orders are possible, for example:

• В печи для обжига идёт обжиг.
• В печи для обжига обжиг идёт.

These alternatives may shift emphasis slightly:

• starting with В печи... emphasizes the location
• starting with Обжиг... emphasizes the process itself

The original sentence sounds natural and straightforward.

Yes, it is natural, especially in technical or descriptive language.

The repetition comes from the fact that:

• обжиг names the process
• печь для обжига names the equipment intended for that process

Russian often tolerates this kind of repetition more easily than English, especially in specialized contexts. In English, you might prefer to avoid repeating firing, but in Russian it does not sound especially strange.

Depending on style, a Russian speaker might also use a less repetitive wording, but the given sentence is still grammatical and understandable.

Yes, идёт is the 3rd person singular present tense of the imperfective verb идти.

That matters because the sentence describes an ongoing process:

• Обжиг идёт = The firing is in progress

Russian imperfective verbs are commonly used for actions/processes that are:

• ongoing
• repeated
• habitual
• viewed as unfolding

So идёт fits the idea that the firing process is currently taking place.

A very literal breakdown would be:

• Обжиг — firing
• идёт — goes / is going on
• в печи — in the kiln/furnace
• для обжига — for firing

So literally:

• Firing goes on in a kiln for firing.

That is not very elegant in English, but it helps show how the Russian sentence is built.

A more natural English rendering would be something like:

• The firing is taking place in the kiln.
• The firing is underway in the firing kiln.
• The material is being fired in a kiln.

The best choice depends on context.