ER Series Helical Gear Hardened Gear Reducer

In field of reducer gear processing, control of diameter allowance in rough turning before tempering and quenching is an important link to ensure quality of gear processing. This step not only prepares for subsequent quenching and tempering of machine, but also has a decisive influence on stability of processing process and final precision of gear.，百感交集。

Discussion on Roller Rough Turning Allowance Before Quenching

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TA's Daily Mood: Happy, Last Login: 2018-8-7 13:47, Continuous Sign-in: 2 说真的... days Occasionally Look II, Posted on 2011-8-27 18:07:20 | Show All Floors

我跟你交个底... Allowance is a bit large, finished diameter 320, length 2200, we only leave 4mm on one side for tempering.

摆烂。 YYZ, Posted on 2011-8-28 09:18:23 | Show All Floors

Allowance is a bit large, but large state-owned enterprises leave such allowance almost.，精神内耗。

But allowance...

Importance of Processing Allowance in Precision Manufacturing

In precision manufacturing, design of processing allowance between rough turning and finishing turning is crucial. For general shafts, with a length of about 200mm and a diameter of about 20mm, general rough turning allowance is 3~4mm. After tempering treatment, allowance in finishing turning stage will be correspondingly reduced, usually about 0.6mm, which can ensure accuracy and meet final processing requirements.

扯后腿。 However, when length of shaft increases to more than 500mm, processing allowance needs to be re-evaluated to ensure sufficient processing space and consider accuracy and stability.

Choosing Right Speed and Feed Rate

In process of machine tool processing, determination of best speed and feed rate depends on various factors, including material of workpiece, shape, especially length, and direct relationship with cutting tools. For example, front and rear cutting edges of tool, circular arc radius, and edge radius of tool. Moreover, choice of tool material to improve surface finish is also different, using hard materials, etc.，太刺激了。

Control of Roundness Error and Perpendicularity

It is required that two ends and inner hole be perpendicular to each or, and circular jump error be controlled within 0.02mm. Now, reducer has been in production for two months, secondary planetary oscillation value is 3~5mm/s, roller pressure is 9.0MPa, and surface area is 440m...，官宣。

Process Testing and Experience Accumulation

In practice, determining optimal allowance usually requires process testing and experience accumulation. By evaluating and analyzing processing effects under different allowances, continuously adjusting and optimizing allowance parameters to achieve best processing quality and economic benefits.，内卷...

Data Analysis Before Quenching

According to provided table information, we can see that different diameter and length ranges of shaft gears have different allowance requirements in rough turning. For example, for shaft gears with diameters from 125 to 250mm and lengths from 125 to 500mm, allowance increases from 14mm to 18mm. For shaft gears with diameters from 500 to 800mm, change of allowance is more complex. According to length interval, edge margin is 10, 12, 16, 18, 22mm respectively. These data provide precise guidance for reducer gear processing, ensuring control of allowance during processing process.，太坑了。

Determination of Processing Allowance

妥妥的！ The determination of rough turning, semi-fine turning, and finishing turning allowance is as follows:

Rough turning: The determination of rough turning allowance depends on various factors, including material, size, shape, and processing requirements of workpiece. Generally, rough turning allowance is about 1/3~1/2 of tooth height, or adjusted according to process experience and actual conditions. If allowance is too large, it will lead to increased subsequent processing amount, extended processing time, and increased cost. If allowance is too small, it will affect accuracy and quality of gear, increase noise and vibration of gear.

Semi-fine turning: Semi-fine turning is mainly to prepare for finishing turning, remove allowance after rough turning, and furr improv 我深信... e processing accuracy. The processing allowance of semi-fine turning is usually smaller than that of rough turning, usually about 0.3mm.

Finishing turning: The purpose of finishing turning is to ensure size accuracy and surface roughness value of part. The finishing turning allowance is usually about 0.6mm.，脑子呢？

Factors Affecting Allowance

However, determination of allowance is not arbitrary, and various factors need to be considered, including material, size, shape of reducer gear, and subsequent processing requirements. Different materials may produce different size changes during tempering process, so appropriate allowance needs to be determined according to specific situation. At same time, performance of processing equipment and characteristics of processing technology are also factors that need to be considered. If allowance is too large, it may increase processing time and cost; if allowance is too small, processing quality and size accuracy of reducer gear may not be guaranteed.，内卷。

Rough Turning Process

The purpose of rough turning is to remove most of blank allowance, creating conditions for tempering process. Tempering is a heat treatment process that can improve mechanical properties, increase strength and toughness of reducer gear. During this process, reducer gear will undergo certain size changes and structural transformations. Therefore, if allowance is insufficient, size after tempering may not meet requirements, leading to inability to carry out subsequent finishing processing.

Conclusion

奥利给！ Controlling rough turning allowance of gear reducer gears and analyzing data before quenching are important processes in reducer gear processing. By understanding factors affecting allowance and continuously optimizing processing parameters, quality and precision of reducer gears can be effectively guaranteed.