cause analysis of machining error
There are many reasons for the formation of machining errors, and they will change with different

machining materials, different machining tools, different machining conditions and different lubrication

systems. Therefore, when analyzing machining errors, we must treat them according to specific

circumstances. Generally speaking, the causes of machining errors are mainly concentrated in the

following aspects.

1.geometric error of machining machine tool
As we all know, machining is almost inseparable from machining machine tools. No matter how high

the precision of machining machine tools is, machining errors will inevitably occur. Before using the

machine tool for machining, the workpiece must be clamped and positioned first, and the fixture

positioning will produce error. On the other hand, in the process of realizing transverse feed and

longitudinal feed, due to the design processing error and transmission accuracy error of transmission

components such as guide rail and lead screw, machining error will also occur in the process of

machine tool processing. Generally speaking, in the process of machining and movement of each

part of the machine tool, the greatest impact on the machining error is the accuracy error of the

guide rail and the positioning error of the fixture. Therefore, the current measurement of machine

tool accuracy is mainly measured and investigated from these two aspects.

1. geometric error of machining tools
In the process of machining, it is inevitable to use a variety of tools, such as turning tools, reamers,

boring tools, milling tools and grinding tools. Different tools will produce different machining errors

in the process of machining. Moreover, because the tools themselves are also manufactured by

machining, the tools themselves also have a certain accuracy, This makes the machining error

inevitable. On the other hand, the tool realizes the cutting and forming of the machined workpiece

in the process of continuous motion. The geometry of the machined workpiece surface is actually

the reflection of the cutting surface of the tool, so the geometric dimension accuracy error of the

tool will be directly transmitted to the surface of the machined workpiece, resulting in surface

processing error and affecting the surface quality of machining.

1. adjustment error
Machining is composed of a series of different processes and steps. In the process of machining,

it is often necessary to fine tune the process after each step, such as re setting the tool, or positioning

contact or re clamping of the workpiece. In this process, new errors will inevitably occur. Therefore,

when other machining conditions are certain or no longer change, the adjustment error will play a

decisive role in the error accuracy of the machined workpiece.

1. positioning error
In machining, the workpiece needs to be positioned and clamped. Only the fixed workpiece can

successfully complete machining. In the process of workpiece positioning and clamping, people

often complete this process, which will inevitably lead to machining errors. Even for a fully automated

machining center, its positioning and clamping are completed automatically by the control system, it

is still inevitable to produce positioning errors. The accuracy of workpiece positioning and clamping

will directly affect the geometric dimension of the surface shape of the machined workpiece, which

has an important impact on the completion of assembly. Therefore, positioning error mainly refers to

the non coincidence degree of datum, which is the decisive factor affecting the error of machined

workpiece. In the actual machining process, the machining personnel cannot completely eliminate

the machining error caused by the positioning error, but within the allowable range of tolerance, the

influence of the machining error caused by the positioning error should be reduced or reduced as

much as possible, so that the machining error falls within the tolerance range.

1. error caused by stress or heating of process system
No matter plastic material processing or metal material processing, machining is a process system

under stress and heating. In such a system, the machining of the workpiece by the tool will inevitably

be accompanied by the problems of stress and heating. The stress of the workpiece will affect the

forming quality of the machined surface, and the heating will affect the thermodynamic performance

of the workpiece, It will also affect the product performance of the final parts. Especially for some

parts with particularly high surface quality requirements or high machining accuracy requirements,

the errors caused by heat or force in the machining process may lead to the scrapping of the whole

machined parts. Therefore, in the machining process, it is often necessary to use cutting fluid to

lubricate and cool the machining process system, which is also for the purpose of controlling and

reducing machining error.

Stainless Steel Adjustable Feet Parameter

Stainless Steel Adjustable Feet Size

Stainless Steel Adjustable Feet Material

Stainless Steel Adjustable Feet Describe

Application.

Stainless Steel Adjustable Feet Scope of application

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