How To Get Started In Aluminum CNC Machining Parts

This is an article to introduce the procedure from design to produce the aluminum machining part in a new bicycle system.
Tactical Machining Bicycle System

Aluminum machining part is used for designing on an innovative system

Aluminum machining part is very popular nowadays.
Many precision machining parts are made of aluminum alloy, i.e. AISI 6061, AISI 7075, AISI 5052, AISI 6082, etc.
Aluminum machining parts are used in different industries, such as bicycle, automobile, aviation, marine, medical, etc.
This is an article to introduce the procedure from design to produce the CNC machined billet aluminum parts in a new bicycle system.

Category

1.Bicycle riding posture
2.The bad for one riding position all the time
3. The purpose for developing aluminum machining parts in new handle bar position adjust system
4. Aluminum machining spare parts design
5. Production process of aluminum machining spare parts 5.1 Production equipments 5.2 Measure Tools 5.3 Production Process
6.Select good China aluminum machining part manufacturer

1. Bicycle Riding Posture

Comfortable, Relax, Speed

2. The bad for one riding position all the time

If you ride a bicycle, you will always ride on the only posture as all the current bicycles only have one handlebar position.
It’s not comfortable, you will get very tired and back, shoulder or neck pain after you have a long ride.

3. The purpose for developing aluminum machining parts in new handle bar position adjust system

My goal is to make riding a more comfortable experience for people that experience back, shoulder, or neck pain while riding.
It’s very necessary to develop a new handlebar position adjust system with aluminum machining parts, which includes the aerodynamic position, the neutral position, and the comfort position.
It can remove your nervous and tired.
Meanwhile, you will ride a longer time and further away.
When battling a headwind or trying to keep up with the “fast crowd”, putting the system down low in the aerodynamic position.
The most ride position is neutral.
When the back and shoulders begin to ache from a long ride, putting the system in the up position to comfort.
This shifts your weight and relieves fatigued muscles.

4.Aluminum machining spare parts design

The handlebar position adjust system consists of 7 aluminum machining parts, which are Cylinder Clamp, Frt Fitting, Hbarclamp, Linkage, Rear Fitting, Release Head, and Rhead lever.
They are designed by Autocad and simulation tests on Pro-E.
For reference as bellow

Precision Machining Part 3D Drawing
cnc milling machining aluminum mask machine parts

5. Production process of aluminum machining spare parts

5.1 Production equipments

Swiss Screw Cnc Machines, 4 axis Cnc milling mahines, aluminum cold drawn machines, automatic bar cutting machines, Cnc drilling machines, sand blasting machines, anodizing line

5.2 Measure Tools

Mitutoyo vernier calipers, micrometer, three coordinate projector, “Go” or “Not Go” gauges. spectrograph
The rider can simply actuates a thumb lever, without stopping, and can adjust the handlebars to 3 positions with a 100 degree range

5.3 Production Process

a) Description:

The aluminum machining part is made of aluminum 6061 and made by cold drew raw material bar and cnc rapid machining.

b) Cold drew

Make a special cold drew mold to cold drew a square bar, the square bar’s size is 26mmx27mm, which is 1mm larger, as well in order to have enough machining operations sizes.

c) Cold drew equipments

We will choose 1000T and 0.2 flow rate cold drew machine to make 3m bar and cut 300mm of each end off in order to avoid any impurity element in the bar.

d) Hardness

Put the 3m bar into the water to cooling.
After 15 minutes, put the bar in 212 Fahrenheit degree aging oven for 12 hours.
Then put the bar on the ground, and wind cooling for 24 hours. At the end, we will get the correct hardness and pure aluminum 6061.

e) Test

After 24 hours, test the size, concentricity, and the tolerance of the square bar, the tolerance range is +/-0.1mm.
If all are correct, we will test chemical components by spectrograph to check if all the chemical components are the same as the aluminum 6061’s prototype.
When everything is right, put the bar in paper bag in order to avoid scratch or dents during transit.

f) Cutting benchmark

Put the 3m bar on the rail of raw material cutting machine, remove the package, put the package in recycle area, which will be done with specially regularly.

g) Cutting equipments

The model number of raw material cutting machine, which we choose, is 350.
First, cut 10mm off in order to have a flat surface, second, put the bar on the machine and aligning the flat surface to “0” position of the machine.
Cut the bar into a 57mm rod of each.

metal machining cnc aluminum custom parts

h) Cutting rod

Lay the 57mm rods in a plastic transit container one by one, each plastic transit container lay a one floor, pay an attention, don’t lay 2 floors.
Blow the aluminum scraps away by air gun and keep the container as clean as possible.
Put the process flow card on the container, write the model number, size, time, quantity, order number on the card, the inspector sign his name on the card too after checking if they are correct.
Transit all the container to a specified blank area.

i) CNC Mill equipments

Put the blank on 4 axis CNC milling machines, the model number TM540.
Use the forth axis to clamp 10mm position of the blank, then set up parameters.

j) Machining operation on the CNC mill

First
install a 10mm drill, and adjust the rotate speed to 8000rmp, set feed to 100 double.
Second
install a 15mm drill, adjust the rotate speed to 4000rmp, set feed to 30 double.
Third

install 5mm drill, adjust the rotate speed to 8000rmp, set feed to 100 double, install a 10mm aluminum specialized blade, adjust the rotate speed to 8000rmp, set feed to 300.
After above machining operations, the rough shape of the part is finished.

Forth
Install 10mm drill, adjust the rotate speed to 8000rmp, set feed to 100
Fifth
install a 10mm aluminum specialized blade, adjust the rotate speed to 15000rmp, set feed 100 double, after above operations, chamfer the edges, remove the burrs, one surface is finished.
Sixth
Unload the blank and change the surface, load it again, fix on 10mm hole, clamp the X axis, install 10mm drill, adjust the rotate speed to 8000rmp, set feed to 100, change to aluminum specialized blade, milling it as the setting parameters.
Seventh

Change to the 2mm facing cutter, install 2mm aluminum specialized blade, adjust the rotate speed to 5000rmp, set feed to 50.
After advanced machining finished, blow the aluminum scraps away, put the ready part in the plastic transit container again.

k) After production Inspection

Transit to inspection department, fully inspect all the ready parts by three coordinate projector, randomly inspect again according to AQL 0.65 standard.

l) Ultrasonic clean

After inspection, put the parts in the ultrasonic cleaner tank, ultrasonic clean each part with environmental cleanout fluid.
Move the cleaning finished parts to 212 fahrenheit degree dryer for 2 hours, then wind cooling.

m) Anodizing

Sending to Aluminum Anodizing factory, they are anodized according to the standard of MIL-A-8625F Type II Class 2 Matt Black.

n) Final inspection before package

Move to inspection department after anodizing again, fully inspect by three coordinate projector, randomly inspect again according to AQL 0.65 standard before package.

o) Package

According to package instruction, put each part in one opp bag, lay on the carton box, each floor is isolated by carton board.
The limited loading weight is 10kg, i.e. 100pcs of each carton.
Put the mark on the carton box, put all the carton boxes on wooded pallet with pallet mark.

6. Select good China aluminum machining parts manufacturer

i) Review

Review the developing of China CNC Machining, iron, carbon steel and brass are the earliest used.
It cause most of China manufacturers are family with iron, carbon steel and brass.
They have a lot experience in CNC machining iron and carbon steel.
During the industries’ developing, aluminum gets more and more popular.
Due to the high demand, many buyers are looking for a good aluminum machining supplier to cooperate together.
You will find most of China manufacturers cannot provide very good aluminum parts, for example, high precision dimensions, nice machining trace, perfect anodizing according to MIL-A-8625, etc.

ii) Ningbo good aluminum CNC machining manufacturer

Ningbo Sinster Machine Co., Ltd is worth for you to cooperate as a supplier in your supplier chain.
Sinster’s advantage is aluminum and stainless steel, no matter 5052, 6060, 6061, 6063, 6082, 7075, etc.
You can see Sinster’s CNC service at https://www.syluecncmachining.com/precision-machining-service
Selecting Sinster will get your projects easily and safety.
Don’t hesitate to send inquiry to [email protected],
You will get the competitive price in seconds.

china high precision machining auto parts aluminum
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