高速铣削中英文对照

High-speed milling

——高速铣削【中英文对照】

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[10-06-11 22:49:23]

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High-speed milling

High-speed machining is an advanced manufacturing technology, different from

the traditional processing methods. The spindle speed, cutting feed rate, cutting

a small amount of units within the time of removal of material has increased three

to six times. With high

efficiency, high precision and

high

quality surface as

the

basic

characteristics

of

the

automobile

industry,

aerospace,

mold

manufacturing

and

instrumentation

industry,

such

as

access

to

a

wide

range

of

applications,

has

made

significant economic benefits, is the contemporary importance of advanced

manufacturing technology. For a long time, people die on the processing has been

using a grinding or milling EDM (EDM) processing, grinding, polishing methods.

Although

the

high

hardness

of

the

EDM

machine

parts,

but

the

lower

the

productivity

of its application is limited. With the development of high-speed processing

technology, used to replace high-speed cutting, grinding and polishing process to

die

processing

has

become

possible.

To

shorten

the

processing

cycle,

processing

and

reliable quality assurance, lower processing costs.

1 One of the advantages of high-speed machining

High-speed

machining

as

a

die- efficient

manufacturing,

high-quality,

low

power

consumption in an advanced manufacturing technology. In conventional machining in

a series of problems has plagued by high-speed machining of the application have

been resolved.

1.1 Increase productivity

High-speed cutting of the spindle speed, feed rate compared withtraditional

machining, in the nature of the leap, the metal removal rate increased 30 percent

to

40

percent,

cutting

force

reduced

by

30

percent,

the

cutting

tool

life

increased

by 70% . Hardened parts can be processed, a fixture in many parts to be completed

rough,

semi- finishing

and

fine,

and

all

other

processes,

the

complex

can

reach

parts

]

of the surface quality requirements, thus increasing the processing productivity

and competitiveness of products in the market.

1.2 Improve processing accuracy and surface quality

High-speed machines generally have high rigidity and precision, and other

characteristics, processing, cutting the depth of small, fast and feed, cutting

force low, the workpiece to reduce heat distortion, and high precision machining,

surface

roughness

small.

Milling

will

be

no

high-speed

processing

and

milling

marks

the

surface

so

that

the

parts

greatly

enhance

the

quality

of

the

surface.

Processing

Aluminum when up Ra0.40.6um, pieces of steel processing at up to Ra0.2 ~ 0.4um.

1.3 Cutting reduce the heat

Because

the

main

axis

milling

machine

high-speed

rotation,

cutting

a

shallow

cutting,

and feed very quickly, and the blade length of the workpiece contacts and contact

time

is

very

short,

a

decrease

of

blades

and

parts

of

the

heat

conduction.

High-speed

cutting

by

dry

milling

or

oil

cooked

up

absolute

(mist)

lubrication

system,

to

avoid

the

traditional

processing

tool

in

contact

with

the

workpiece

and

a

lot

of

shortcomings to ensure that the tool is not high temperature under the conditions

of work, extended tool life.

1.4 This is conducive to processing thin-walled parts

High-speed cutting of small cutting force, a higher degree of stability,

Machinable with high-quality employees compared to the company may be very good,

but

other

than

the

company's

employees

may

Suanbu

Le

outstanding

work

performance.

For

our

China

practice,

we

use

the

models

to

determine

the

method

of

staff

training

needs

are

simple

and

effective.

This

study

models

can

be

an

external

object,

it

can

also be a combination of internal and external. We must first clear strategy for

the development of enterprises. Through the internal and external business

environment

and

organizational

resources,

such

as

analysis,

the

future

development

of a clear business goals and operational priorities. According to the business

development strategy can be compared to find the business models, through a

comparative

analysis

of

the

finalization

of

business

models.

In

determining

business

models, a, is the understanding of its development strategy, or its market share

and market growth rate, or the staff of the situation, and so on, according to the

companies

to

determine

the

actual

situation.

As

enterprises

in

different

period

of

development, its focus is different, which means that enterprises need to invest

the

manpower

and

financial

resources

the

focus

is

different.

So

in

a

certain

period

of

time,

enterprises

should

accurately

selected

their

business

models

compared

with

the departments and posts, so more practical significance, because the business

models

are

not

always

good,

but

to

compare

some

aspects

did

not

have

much

practical

significance, Furthermore This can more fully concentrate on the business use of

limited resources. Identify business models, and then take the enterprise of the

corresponding departments and staff with the business models for comparison, the

two can be found in the performance gap, a comparative analysis to find reasons,

in

accordance

with

this

business

reality,

the

final

identification

of

training

needs.

The

cost

of

training

is

needed,

if

not

through

an

effective

way

to

determine

whether

companies need to train and the training of the way, but blind to training, such

training

is

difficult

to

achieve

the

desired

results.

A

comparison

only

difference

between this model is simple and practical training.

1.5 Can be part of some alternative technology, such as EDM, grinding high

intensity and high hardness processing

High-speed cutting a major feature of high-speed cutting machine has the hardness

of HRC60 parts. With the use of coated carbide

cutter mold processing, directly to

the

installation

of

a

hardened

tool

steel

processing

forming,

effectively

avoid

the

installation of several parts of the fixture error and improve the parts of the

geometric

location

accuracy.

In

the

mold

of

traditional

processing,

heat

treatment

hardening

of

the

workpiece

required

EDM,

high-speed

machining

replace

the

traditional

method

of

cutting

the

processing,

manufacturing

process

possible

to

omit

die in EDM, simplifying the processing technology and investment costs .

High-speed

milling

in

the

precincts

of

CNC

machine

tools,

or

for

processing

centre,

also in the installation of high-speed spindle on the general machine tools. The

latter

not only has the

processing

capacity

of general

machine tools, but also for

high-speed

milling,

a

decrease

of

investment

in

equipment,

machine

tools

increased

flexibility. Cutting high-speed processing can improve the efficiency, quality

improvement,

streamline

processes,

investment

and

machine

tool

investment

and

maintenance costs rise, but comprehensive, can significantly increase economic

efficiency.

2 High-speed milling

High-speed

milling

the

main

technical

high-speed

cutting

technology

is

cutting

the development direction of one of it with CNC technology, microelectronic

technology, new materials and new technology, such as technology development to a

higher level. High-speed machine tools and high-speed tool to achieve high-speed

cutting is the prerequisite and basic conditions, in high- speed machining in the

performance of high-speed machine tool material of choice and there are strict

requirements.

2.1 High-speed milling machine in order to achieve high-speed machining

General

use

of

highly

flexible

high-speed

CNC

machine

tools,

machining

centers,

and

some

use

a

dedicated

high-speed

milling,

drilling.

At

the

same

time

a

high-speed

machine tool spindle system and high-speed feeding system, high stiffness of the

main

characteristics

of

high-precision

targeting

and

high-precision

interpolation

functions, especially high-precision arc interpolation function. High-speed

machining systems of the machine a higher demand, mainly in the following areas:

General

use

of

highly

flexible

high-speed

CNC

machine

tools,

machining

centers,

and

some use a dedicated high-speed milling, drilling. At the same time a high-speed

machine tool spindle system and high-speed feeding system, high stiffness of the

main

characteristics

of

high-precision

targeting

and

high-precision

interpolation

functions,

especially

high-precision

arc

interpolation

function.

High-speed

machining systems of the machine a higher demand, mainly in the following areas:

High-speed milling machine must have a high-speed spindle, the spindle speed is

generally

10000

~

100000

m

/

min,

power

greater

than

15

kW.

But

also

with

rapid

speed

or

in

designated

spots

fast-stopping

performance.

The

main

axial

space

not

more

than

0

.0

0

0

2

m

m.

Often

using

high-speed

spindle- hydrostatic

bearings,

air

pressure-bearing, mixed ceramic bearings, magnetic bearing structure of the form.

Spindle cooling general use within the water or air cooled.

High-speed processing machine-driven system should be able to provide 40 ~ 60 m /

min

of

the

feed

rate,

with

good

acceleration

characteristics,

can

provide

0.4

m/s2

to

good

10

m/s2

acceleration

and

deceleration.

In

order

to

obtain

processing quality, high-speed cutting machines must have a

high

enough

stiffness.

Machine

bed

material

used

gray

iron,

can

also

add

a

high-damping base of concrete, to prevent cutting tool chatter affect the quality

of

processing.

A

high-speed

data

transfer

rate,

can

automatically

increase

slowdown.

Processing technology to improve the processing and cutting tool life. At present

high-speed

machine

tool

manufacturers,

usually

in

the

general

machine

tools

on

low

speed, the feed of the rough and then proceed to heat treatment, the last in the

high-speed

machine

on

the

half- finished

and

finished,

in

improving

the

accuracy

and

efficiency at the same time, as far as possible to reduce processing Cost.

2.2 High-speed machining tool

High-speed machining tool is the most active one of the important factors, it

has

a

direct

impact

on

the

efficiency

of

processing,

manufacturing

costs

and

product

processing and accuracy. Tool in high- speed processing to bear high temperature,

high pressure, friction, shock and vibration, such as loading, its hardness and

wear-resistance, strength and

toughness, heat resistance, technology and economic

performance of the basic high-speed processing performance is the key One of the

factors. High-speed cutting tool technology development speed, the more

applications such as diamond (PCD), cubic boron nitride (CBN), ceramic knives,

carbide

coating,

(C)

titanium

nitride

Carbide

TIC

(N)

And

so

on.

CBN

has

high

hardness,

abrasion resistance and the extremely good thermal conductivity, and iron group

elements

between

the

great

inertia,

in

1300

℃

would

not

have

happened

significant

role

in

the

chemical,

also

has

a

good

stability.

The

experiments

show

that

with

CBN

cutting tool

HRC35 ~ 67 hardness of hardened steel can achieve very high speed. Ceramics have

good

wear

resistance

and

thermal

chemical

stability,

its

hardness,

toughness

below

the CBN, can be used for processing hardness of HRC <5 0 parts. Carbide Tool good

wear

resistance,

but

the

hardness

than

the

low-CBN

and

ceramics.

Coating

technology

used knives, cutting tools can improve hardness and cutting the rate, for cutting

HRC40

~

50

in

hardness

between

the

workpiece.

Can

be

used

to

heat- resistant

alloys,

titanium

alloys,

hightemperature

alloy,

cast

iron,

Chungang,

aluminum

and

composite

materials of high-speed cutting Cut, the most widely used. Precision machining

non-ferrous metals or non-metallic materials, or the choice of polycrystalline

diamond Gang-coated tool.

2.3 High-speed processing technology

High-speed

cutting

technology

for

high-speed

machining

is

the

key.

Cutting

Methods

misconduct, will increase wear tool to less than high-speed processing purposes.

Only

high-speed

machine

tool

and

not

a

good

guide

technology,

high-speed

machining

equipment can not fully play its role. In high-speed machining, should be chosen