Master craftsman | 0.05mm! Engrave "thousand-mile eyes" for the satellite

He is for Shenzhou spacecraft, satellites, etc

Major national equipment provides security and protection

His "weapon"

Its thickness is only half that of A4 paper

Today, let's take a look at the skilled craftsmen together

Zhang Zhizhong ↓

He uses a 0.05-millimeter milling cutter

Carve the "Eye of Space"

China Electronics Technology Group Corporation

Zhang Zhizhong, a senior technician at the Institute of Industrial Foundation, is a milling operator

His "weapon"

It is a milling cutter with a diameter of only 0.05 millimeters

This thickness

It's just half the size of an A4 paper

Operate this "mini weapon"

Be absolutely stable.

Even slight shaking may damage the blade

When clamping

The human eye cannot even perceive the blade

When the milling cutter is working

The machine tools around must be turned off

A tiny vibration

All of these may lead to processing errors

Zhang Zhizhong makes the milling cutter act like a dancer

It dances lightly on the metal surface

Each cut should be 0.001 millimeters

Several hundred or so dollars came down

Every cut has an error

It must be controlled within 0.005 millimeters

Carved and completed

This passage has a diameter of 0.06 millimeters

It is a tunnel through which satellites emit microwaves in space

Between a millimeter

It determines whether the "Eye of Space" can see further

At present

Domestic high-frequency waveguide component products of this kind

There is only Zhang Zhizhong's studio in the entire institute

Be capable of production and meet the batch production standards

He dares to challenge the impossible

The shell thickness of the "aerospace core" has been reduced to 1.5 millimeters

Zhang Zhizhong's deft hands

It can not only polish the "eyes" of satellites

It can also be a key component of spacecraft

Tailor-made "protective shell"

In space

The spacecraft precisely positioned the space station

Rely on the internal radar transmitter

These precision core components

It is carefully protected by a layer of shell

Withstand the harsh tests of high temperature and high pressure in space

Since the first generation of Shenzhou spacecraft

Zhang Zhizhong's team

It shoulders the mission of safeguarding the "aerospace core"

In the field of aerospace

"Every reduction of 1 gram of parts is a contribution."

But for Zhang Zhizhong's team

1 gram

It means challenging the impossible

Once

Zhang Zhizhong's team received the task

It's already at the limit of weight loss

The produced parts

The thickness of the shell has become so thin

A record-breaking 5 millimeters

But still half of the weight needs to be lost

The thinner the shell is, the more prone it is to deformation

This is a major problem recognized by the industry

Facing unfamiliar new materials

Overcoming deformation is even more difficult

Zhang Zhizhong also thinks

There's really no way to reduce it any more.

But he didn't give up

I think one should have the courage to challenge

One cannot say to give up when encountering difficulties.

It took more than a year

Zhang Zhizhong leads the team

On the basis of ensuring the structure and accuracy

Just insisting on the thickness of the shell

Reduce from 5 millimeters to 1.5 millimeters

His eyes are like "rulers".

Visual judgment is equal to professional measurement data

For many years

Zhang Zhizhong has developed a "divine skill".

Micron-level errors can be judged by the naked eye

It is almost equivalent to professional measurement data

This confidence in getting it right at a glance

From him for 21 years

Countless days and nights of peace and tranquility

The research and development of hundreds and thousands of tooling fixtures

The accumulation of over 50 innovative achievements

For many years

He exercises himself strictly and repeatedly

One difficulty after another

He has developed the ability to endure loneliness

A nature that can withstand repetition

It also trained him

The ultimate skill of understanding the "temperament" of materials

In Zhang Zhizhong's heart

A skilled craftsman should strive forward

Innovation requires peace of mind and concentration

Be able to endure loneliness and withstand repetition

Don't refrain from doing something just because it's small

It should start with some small innovations...

The original intention is to

Do every ordinary job well

Be worthy of every product I hand in.

Note: This news is reprinted from CCTV.com.