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SMT optimization and improvement

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Hello to all, We are encountered many problems/defects in... - May 28, 2006 by Jack  

#41869

SMT optimization and improvement | 28 May, 2006

Hello to all,

We are encountered many problems/defects in SMT lines.I would like to know your suggestion or recommendation for SMT optimization and improvement. What are the step by step solutions in order to optimized and to improve the printer, pick and place(Panasonic CM402,CM301), AOI and reflow oven specially the yield, downtime,pick and throw of pick and place,efficiency? Your recommendations/suggestion will be highly appreciated.

Thank you, Jack

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#41878

SMT optimization and improvement | 29 May, 2006

Howdy Jack, That is a huge request, It would help if you start from the begining of your process and break down the problems that you are having.

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#41916

SMT optimization and improvement | 31 May, 2006

Hello jbrower,

Thank you for the feedback. Actually, our main problems is the pick and throw. Whats your suggestion how to control the pick and throw?What are the factors that affecting pick and throw?How to reduce the sources of variance at each step of the component placement process?Your response will be highly appreciated. Thank you.

regards,

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EC

#41917

SMT optimization and improvement | 31 May, 2006

Hi Jack,

I do not know what type of machine you are using and how old is your machine. But I have this problem before using Fuji machine. There are few things cause part throw.....placment speed, feeder, pick up tolerance, part dimension tolerance, etc.... How I over come this is to make sure the feeder is in good condition with no feeding problem and reduce the placement speed to the slowest speed. From there, slowly increase the placement speed. Normally, camspeed for placing 0805 and 0603 should not be problem, but after few years of running, there is wear nd tear.......now I'm using 80% to 90% placement for 0805 and 0603 component. I do a 100% inspection before reflow and spend almost 3 month to resolve the pick and throw and at the same time resolve misalignment and missing component. Todat the yield is talking about 98% to 99.5%.

Regards, EC

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#41918

SMT optimization and improvement | 31 May, 2006

Hello EC,

Thank you very much for the good input. I really appreciated. Our mounnters is Panasonic CM402,CM301. Do you have any suggestions/procedure how to reduce the sources of variance at each step of component placement process?

regards,

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ts

#41919

SMT optimization and improvement | 1 June, 2006

there should no issues for CM402 or 301.

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ts

#41920

SMT optimization and improvement | 1 June, 2006

The PT200 at line converter able to optimize your program to balance the line.

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#41921

SMT optimization and improvement | 1 June, 2006

Hello TS,

Our CM402 and 301 have encountered pick and throw. Do you have additional inputs?What is PT200?Please explain how it can help to optimize the program?

regards,

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EC

#41922

SMT optimization and improvement | 1 June, 2006

Hi TS,

Most of the machines will face this problem after been using few years.....I handling SMT equipments ( Fuji machine ) and process.....sorry if I have offened you......

Hi Jack, Firstly, you must able to tell which component having a high throw out. Put there to the slowest speed and slowly increase. Every increase may be 10%...... Before you slow down the speed, pls make sure your part information in the library is correct and tolenance not too large. And also feeder must be in good condition.

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#41923

SMT optimization and improvement | 1 June, 2006

Hello EC,

We already done your suggestion but still no effect. Feeders already calibrated. Do have additional inputs for this? Also is the barcode eliminate 100% wrong value component?

regards,

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EC

#41944

SMT optimization and improvement | 1 June, 2006

Hi Jack,

The throw out is it after vision or before vision. Do u have any msn account.....using msn is much easy to discuss the issue with you.

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#41945

SMT optimization and improvement | 1 June, 2006

Hello EC,

Throw out is sometimes after and before. My msn account is j.saria@hotmail.com.

regards,

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EC

#41950

SMT optimization and improvement | 1 June, 2006

Hi Jack,

Already send to you.

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#41951

SMT optimization and improvement | 2 June, 2006

Hello EC,

I already sent email to you. Thank you.

regards,

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Pana user

#47426

SMT optimization and improvement | 9 February, 2007

Have you tried using PanaPro software to do optimization?

Pick and Throw? Try adjusting the recog lighting..

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shrikant borkar

#47648

SMT optimization and improvement | 15 February, 2007

hi We are in to Starting New Line CM212A and CM212D at Present Our BM123 is giving 13000 cph, Rated CPH 30,000 This Thread will help me.

Thanks Shrikantborkar@gmail.com

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dougs

#47710

SMT optimization and improvement | 16 February, 2007

EC

Fix your machine rather than slow down the CAM, on 0603 & 0805 components CAM speed should always be 100% on any of the fuji machines.

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SRM

#47712

SMT optimization and improvement | 16 February, 2007

Time for a Snickers fellas?

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#47723

SMT optimization and improvement | 16 February, 2007

I'm not sure if anyone mentioned the single most important factor. p.m.'s. If the nozzles are getting dirty and clogged it's not going to do a great job of picking parts up.

Don't think in terms of variation. It's there it's unavoidable and undetectable. Make your system able to handle the variation. If you look closely at a group of (for instance) ceramic capacitors, they will all be slightly different.

The original poster no doubt was thinking that all parts are the same so why does it pick and place some but not others. Well the parts are not all the same if you measure accurately enough.

I noticed the first post is several months old and I'm wondering how it's going for him.

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#47881

SMT optimization and improvement | 21 February, 2007

I saw that software used by our guys. Takes an Army of guys to run it, not worthit to me.

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