Necessity of CNC precision machining sequence

1. Preparation:

Before Machining The Key Surfaces, The Precision Datum Should Be Trimmed To Ensure The Machining Accuracy Of The Key Surfaces.

2. Surface Treatment:

After The Precision Datum Is Processed, The Key Surfaces With Higher Precision Requirements Are Processed For Roughing, Semi-Finishing Finishing. The Surfaces With Very High Precision Requirements For CNC Precision Parts Also Need To Be Polished.

3. Benchmarks First, Then Others:

The Surface Used As A Precision Reference Should BeThe CNC Machining Process Starts At The Beginning, Because It Is Used For Positioning When Machining Other Surfaces In The Subsequent Process, That Is, "Benchmark First, Then Other".

4. Accurate Positioning:

When Machining The Precision Datum Surface, It Is Necessary To Use The Rough Datum For Accurate Positioning. In The Production Of Scattered Parts, Small Batches, Even Mass Production, For Castings Steel Castings With Complicated Shapes Large Sizes, As Well As Blanks With Large Size Deviations, The Drawing Process Should Be Arranged As Early As The Mechanical Processing Process To Provide A Correct Datum For The Precision Datum Processing.

5. Process Flow:

For Processes That Are Prone To Waste, Finishing Polishing Can Be Appropriately Placed In The Front, Some Minor Surface Processing Can Be Placed At The End.

Precision Die Casting:

It Is An Advanced Precision Metal Parts Forming Technology. Specifically, It Refers To The Use Of Heat, Force, Molecular Motion Other Means To Make Liquid Semi-Liquid Metal Metal Alloy Fill The Mold Cavity At A Higher Speed Under The Action Of Force, Form Condense To Obtain Metal Structural Parts. After Post-Processing CNC Finishing, The Product Size, Shape Performance Can Finally Meet The Target Requirements. Precision Manufacturing Technology.

6. Processing Method:

Precision Casting, CNC Cutting, Belt Polishing, Precision Polishing, EDM, Wire EDM , Etc.